Changeset 588
- Timestamp:
- May 6, 2012 3:14:22 PM (11 years ago)
- Location:
- trunk/help
- Files:
-
- 1 deleted
- 22 edited
Legend:
- Unmodified
- Added
- Removed
-
trunk/help/Calibration of an area detector in GSAS.htm
r585 r588 25 25 <o:Author>Von Dreele</o:Author> 26 26 <o:LastAuthor>Von Dreele</o:LastAuthor> 27 <o:Revision> 4</o:Revision>28 <o:TotalTime> 86</o:TotalTime>27 <o:Revision>11</o:Revision> 28 <o:TotalTime>120</o:TotalTime> 29 29 <o:Created>2012-05-04T19:00:00Z</o:Created> 30 <o:LastSaved>2012-05-0 4T21:08:00Z</o:LastSaved>30 <o:LastSaved>2012-05-05T17:10:00Z</o:LastSaved> 31 31 <o:Pages>4</o:Pages> 32 <o:Words> 910</o:Words>33 <o:Characters> 5188</o:Characters>32 <o:Words>709</o:Words> 33 <o:Characters>4045</o:Characters> 34 34 <o:Company>Argonne National Laboratory</o:Company> 35 <o:Lines> 43</o:Lines>36 <o:Paragraphs> 12</o:Paragraphs>37 <o:CharactersWithSpaces> 6086</o:CharactersWithSpaces>35 <o:Lines>33</o:Lines> 36 <o:Paragraphs>9</o:Paragraphs> 37 <o:CharactersWithSpaces>4745</o:CharactersWithSpaces> 38 38 <o:Version>14.00</o:Version> 39 39 </o:DocumentProperties> … … 72 72 <w:OverrideTableStyleHps/> 73 73 </w:Compatibility> 74 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style='font-size:14.0pt'>Calibration 816 <p class=MsoNormal><span class=Heading1Char><span style='font-size:24.0pt'>Calibration 795 817 of an area detector in GSAS-II</span></span><b><span style='font-size:14.0pt; 796 818 color:#365F91;mso-themecolor:accent1;mso-themeshade:191'><o:p></o:p></span></b></p> 797 819 798 </div> 799 800 <p class=MsoNormal>In this demo, data collected with a Perkin-Elmer area 820 <p class=MsoNormal>In this tutorial, data collected with a Perkin-Elmer area 801 821 detector at APS 11-ID-C with a wavelength 0.10798 A, where the detector was 802 822 intentionally tilted at 45 degrees, are used. Note that menu entries are listed 803 in bold face below as <b style='mso-bidi-font-weight:normal'>Help/About GSAS-II</b>, 804 which lists first the name of the menu (here <b style='mso-bidi-font-weight: 805 normal'>Help</b>) and second the name of the entry in the menu (here <b 806 style='mso-bidi-font-weight:normal'>About GSAS-II</b>).<o:p></o:p></p> 807 808 <h2><span style='mso-spacerun:yes'> </span>Step 1: Download the data file <o:p></o:p></h2> 809 810 <p class=MsoNormal>Download the sample data file from one of these links:</p> 811 812 <p class=MsoNormal><a 813 href="https://subversion.xor.aps.anl.gov/trac/pyGSAS/browser/Examples/images/tilt-11ID/La_hex_%2B45deg-00015.tif?format=raw">https://subversion.xor.aps.anl.gov/trac/pyGSAS/browser/Examples/images/tilt-11ID/La_hex_%2B45deg-00015.tif?format=raw</a><o:p></o:p></p> 814 815 <p class=MsoNormal><span style='mso-spacerun:yes'> </span><span class=GramE>or</span> 816 </p> 817 818 <p class=MsoNormal><a 819 href="https://subversion.xor.aps.anl.gov/pyGSAS/Examples/images/tilt-11ID/La_hex_+45deg-00015.tif">https://subversion.xor.aps.anl.gov/pyGSAS/Examples/images/tilt-11ID/La_hex_+45deg-00015.tif</a><o:p></o:p></p> 820 821 <h2>Step 2: Start GSAS-II </h2> 822 823 <p class=MsoNormal>This is done in different ways, depending on your OS and how 824 GSAS-II is installed. 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Von <span 884 class=SpellE>Dreele</span> and Brian H. Toby<br> 885 <span style='mso-spacerun:yes'> </span><span 886 style='mso-spacerun:yes'> </span>Argonne National Laboratory(C), 887 2010<br> 888 <span style='mso-spacerun:yes'> </span>This product includes software 889 developed by the <span class=SpellE>UChicago</span> Argonne, LLC,<br> 890 <span style='mso-spacerun:yes'> </span>as Operator of Argonne 891 National Laboratory.<br> 892 ========================================================================<br> 893 d:\pyGSAS>python d:\pyGSAS\\GSASII.py<br> 894 Available python module versions for GSASII<span class=GramE>:</span><br> 895 python:<span style='mso-spacerun:yes'> </span>2.7.1<br> 896 <span class=SpellE>wxpython</span>:<span style='mso-spacerun:yes'> 897 </span>2.8.10.1<br> 898 <span class=SpellE>matplotlib</span>:<span style='mso-spacerun:yes'> 899 </span>1.0.1<br> 900 <span class=SpellE>numpy</span>:<span style='mso-spacerun:yes'> 901 </span>1.5.1<br> 902 <span class=SpellE>scipy</span>:<span style='mso-spacerun:yes'> 903 </span>0.9.0rc2<br> 904 OpenGL:<span style='mso-spacerun:yes'> </span>3.0.1<br> 905 Max threads<span style='mso-spacerun:yes'> </span>2<br> 906 This is GSAS-II version:<span style='mso-spacerun:yes'> </span>0.1.5<o:p></o:p></p> 907 </div> 908 <![if !mso]></td> 909 </tr> 910 </table> 911 <![endif]></v:textbox> 912 <w:wrap type="none"/> 913 <w:anchorlock/> 914 </v:shape><![endif]--><![if !vml]><img width=601 height=396 915 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image001.png" 916 alt="Text Box: ======================================================================== General Structure Analysis System-II by Robert B. Von Dreele and Brian H. Toby Argonne National Laboratory(C), 2010 This product includes software developed by the UChicago Argonne, LLC, as Operator of Argonne National Laboratory. ======================================================================== d:\pyGSAS>python d:\pyGSAS\\GSASII.py Available python module versions for GSASII: python: 2.7.1 wxpython: 2.8.10.1 matplotlib: 1.0.1 numpy: 1.5.1 scipy: 0.9.0rc2 OpenGL: 3.0.1 Max threads 2 This is GSAS-II version: 0.1.5 " 917 v:shapes="Text_x0020_Box_x0020_2"><![endif]><!--[if gte vml 1]><v:shapetype 823 in bold face below as <b style='mso-bidi-font-weight:normal'><span 824 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 825 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Help/About 826 GSAS-II</span></b>, which lists first the name of the menu (here <b 827 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 828 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 829 minor-latin'>Help</span></b>) and second the name of the entry in the menu 830 (here <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 831 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 832 minor-latin'>About GSAS-II</span></b>).</p> 833 834 <p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p> 835 836 <p class=MsoNormal>If you have not done so already, <u><span style='color:#0070C0'><a 837 href="Starting%20GSAS.htm">start GSAS-II</a></span></u>.<o:p></o:p></p> 838 839 <h1>Step 1: read in the data file</h1> 840 841 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Use the <b 842 style='mso-bidi-font-weight:normal'>Data/Read image data</b> menu item to read 843 the data file into the current GSAS-II project. </p> 844 845 <p class=MsoNormal><o:p> </o:p></p> 846 847 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shapetype 918 848 id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" 919 849 path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"> … … 935 865 <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/> 936 866 <o:lock v:ext="edit" aspectratio="t"/> 937 </v:shapetype><![endif]--><!--[if mso & !supportInlineShapes & supportFields]><v:shape 938 id="_x0000_i1034" type="#_x0000_t75" style='width:443.25pt;height:289.2pt'> 939 <v:imagedata croptop="-65520f" cropbottom="65520f"/> 940 </v:shape><span style='mso-element:field-end'></span><![endif]--></p> 941 942 <p class=MsoNormal>The GSAS-II program has now been started and an empty 943 project file is created. The project file contains all data and results related 944 to the project you are working on. (Exception: image files are not stored in 945 the project; to save space only the file name is saved.) <o:p></o:p></p> 946 947 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>You should see three 948 windows, two of which are empty. One, in the upper right, is labeled GSASII 949 data tree, the second, immediately under the first is labeled GSAS-II data 950 display and the third on the left is labeled GSAS-II Plots. These windows may 951 be moved anywhere on the screen. On Linux and Windows a menu bar appears at the 952 top <span class=GramE>of <span style='mso-spacerun:yes'> </span>the</span> data 953 tree and data display windows; on a Mac these menus will appear in the system 954 menu bar location (usually at the screen top) depending on which GSAS-II window 955 has the focus. <o:p></o:p></p> 956 957 <h1>Step 3: read in the data file<o:p></o:p></h1> 958 959 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Use the <b 960 style='mso-bidi-font-weight:normal'>Data/Read image data</b> menu item to read 961 the data file into the current GSAS-II project. <o:p></o:p></p> 962 963 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 964 id="Picture_x0020_1" o:spid="_x0000_i1033" type="#_x0000_t75" style='width:225pt; 965 height:204.75pt;visibility:visible;mso-wrap-style:square'> 966 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image002.png" 867 </v:shapetype><v:shape id="Picture_x0020_1" o:spid="_x0000_i1033" type="#_x0000_t75" 868 style='width:225pt;height:204.75pt;visibility:visible;mso-wrap-style:square'> 869 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image001.png" 967 870 o:title="" croptop="9965f" cropbottom="37297f" cropleft="53272f" cropright="5473f"/> 968 871 </v:shape><![endif]--><![if !vml]><img border=0 width=300 height=273 969 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image00 3.jpg"872 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image002.jpg" 970 873 v:shapes="Picture_x0020_1"><![endif]></span><span 971 874 style='mso-spacerun:yes'> </span></p> 972 875 973 876 <p class=MsoNormal>A file selection dialog will be shown; its appearance will 974 depend on your OS. Change the search directory if necessary and then select the 975 file </p> 976 977 <p class=MsoNormal><b style='mso-bidi-font-weight:normal'><i style='mso-bidi-font-style: 978 normal'>La_hex_+45deg-<span class=GramE>00015.tif<span style='font-weight:normal; 979 font-style:normal'> <span style='mso-spacerun:yes'> </span>and</span></span></i></b> 980 press Open.<span style='mso-no-proof:yes'> </span></p> 877 depend on your OS. Change the search directory to <b style='mso-bidi-font-weight: 878 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 879 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>/Exercises/images</span></b> 880 and then select the file </p> 881 882 <p class=MsoNormal><b style='mso-bidi-font-weight:normal'><span 883 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 884 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>La_hex_+45deg-00015.tif</span></b> 885 and press <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 886 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 887 minor-latin'>Open</span></b>.<span style='mso-no-proof:yes'> <o:p></o:p></span></p> 888 889 <p class=MsoNormal><o:p> </o:p></p> 981 890 982 891 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 983 892 id="Picture_x0020_6" o:spid="_x0000_i1032" type="#_x0000_t75" style='width:225pt; 984 893 height:203.25pt;visibility:visible;mso-wrap-style:square'> 985 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image00 6.png"894 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image003.png" 986 895 o:title=""/> 987 896 </v:shape><![endif]--><![if !vml]><img border=0 width=300 height=271 988 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image00 6.png"897 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image003.png" 989 898 v:shapes="Picture_x0020_6"><![endif]></span></p> 990 899 991 <p class=MsoNormal>At this point the data tree window will have several entries; 992 the highlighted one specifies the contents of the data window as <b 993 style='mso-bidi-font-weight:normal'>Image Controls</b><o:p></o:p></p> 900 <p class=MsoNormal><o:p> </o:p></p> 901 902 <p class=MsoNormal>At this point the data tree window will have several 903 entries; the highlighted one specifies the contents of the data window as <b 904 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 905 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 906 minor-latin'>Image Controls</span><o:p></o:p></b></p> 907 908 <p class=MsoNormal><o:p> </o:p></p> 994 909 995 910 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 996 911 id="Picture_x0020_5" o:spid="_x0000_i1031" type="#_x0000_t75" style='width:510.75pt; 997 912 height:303pt;visibility:visible;mso-wrap-style:square'> 998 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image00 7.png"913 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image004.png" 999 914 o:title=""/> 1000 915 </v:shape><![endif]--><![if !vml]><img border=0 width=681 height=404 1001 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image00 7.png"916 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image004.png" 1002 917 v:shapes="Picture_x0020_5"><![endif]></span></p> 1003 918 1004 <p class=MsoNormal><span style='mso-spacerun:yes'> </span><span class=GramE>the</span> 1005 plot window shows the image; notice the elliptical shape of the powder 1006 diffraction rings. The x marks the default beam location (image center); your 1007 calibration will correctly place it.<o:p></o:p></p> 919 <p class=MsoNormal><o:p> </o:p></p> 920 921 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>The plot window shows 922 the image; notice the elliptical shape of the powder diffraction rings. The 923 blue <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 924 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 925 minor-latin;color:#4F81BD;mso-themecolor:accent1'>X</span></b> marks the 926 default beam location (image center); your calibration will correctly place it. 927 Also notice that the values shown in the plot window status bar (at bottom of 928 plot window) change as you move the cursor over the plot; these values are at 929 present in error as they are computed from the default calibration values. They 930 will be correct after you finish the calibration.</p> 931 932 <p class=MsoNormal><o:p> </o:p></p> 1008 933 1009 934 <p class=MsoNormal><span style='mso-spacerun:yes'> </span><span … … 1011 936 o:spid="_x0000_i1030" type="#_x0000_t75" style='width:525pt;height:450pt; 1012 937 visibility:visible;mso-wrap-style:square'> 1013 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image00 8.png"938 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image005.png" 1014 939 o:title=""/> 1015 940 </v:shape><![endif]--><![if !vml]><img border=0 width=700 height=600 1016 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image00 8.png"1017 v:shapes="Picture_x0020_4"><![endif]></span>< o:p></o:p></p>1018 1019 <h1><span style='mso-spacerun:yes'> </span>Step 4: Edit image parameters<o:p></o:p></h1>941 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image005.png" 942 v:shapes="Picture_x0020_4"><![endif]></span></p> 943 944 <h1><span style='mso-spacerun:yes'> </span>Step 2: Edit image parameters</h1> 1020 945 1021 946 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Note that, alas, very 1022 947 few image formats contain all of the important metadata about the image, so it 1023 948 needs to be added manually. In this case set the <b style='mso-bidi-font-weight: 1024 normal'>wavelength</b> to <b style='mso-bidi-font-weight:normal'>0.10798</b>. 1025 It is also helpful to change the display of the image so that it is easier to 1026 see the diffraction rings. Lowering the maximum intensity to 10,000 to 20,000 1027 counts will help (note that this can be done by moving the <span class=GramE>slider,</span> 1028 or by typing a value in the box and then clicking on another control or the 1029 typing the Enter/return key). You may also wish to select another color scheme 1030 using the Color bar selector. <o:p></o:p></p> 1031 1032 <h1><span style='mso-spacerun:yes'> </span>Step 5: Calibrate<o:p></o:p></h1> 1033 1034 <h3><span style='mso-spacerun:yes'> </span>First: <o:p></o:p></h3> 949 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 950 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>wavelength</span></b> 951 to <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 952 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 953 minor-latin'>0.10798</span></b>. It is also helpful to change the display of 954 the image so that it is easier to see the diffraction rings. Lowering the 955 maximum intensity to 10,000 to 20,000 counts will help (note that this can be 956 done by moving the <span class=GramE>slider,</span> or by typing a value in the 957 box and then clicking on another control or pressing the <b style='mso-bidi-font-weight: 958 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 959 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Enter</span></b> 960 or <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 961 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 962 minor-latin'>Tab</span></b> key). You may also wish to select another color 963 scheme using the <b style='mso-bidi-font-weight:normal'><span style='font-family: 964 "Calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: 965 minor-latin;mso-bidi-theme-font:minor-latin'>Color bar</span></b> selector. </p> 966 967 <h1><span style='mso-spacerun:yes'> </span>Step 3: Calibrate</h1> 968 969 <h3><span style='mso-spacerun:yes'> </span>First: </h3> 1035 970 1036 971 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Set the material 1037 972 used as a sample in the box labeled <span class=SpellE><b style='mso-bidi-font-weight: 1038 normal'>Calibrant</b></span>; select <b style='mso-bidi-font-weight:normal'>LaB6 1039 SRM660a</b><o:p></o:p></p> 1040 1041 <h3><span style='mso-spacerun:yes'> </span>Second: <o:p></o:p></h3> 973 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 974 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Calibrant</span></b></span>; 975 select <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 976 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 977 minor-latin'>LaB6 SRM660a</span></b></p> 978 979 <h3><span style='mso-spacerun:yes'> </span>Second: </h3> 1042 980 1043 981 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Use the <b 1044 style='mso-bidi-font-weight:normal'>Operations/Calibrate</b> menu item (note 1045 this menu is on the <b style='mso-bidi-font-weight:normal'>Image Controls</b> 1046 window or for the Mac, the <span class=GramE><b style='mso-bidi-font-weight: 1047 normal'>Image<span style='mso-spacerun:yes'> </span>Controls</b></span> window 1048 must be active to place this into the system menu bar). At this point the 1049 status line on the bottom of the <b style='mso-bidi-font-weight:normal'>Image 1050 Controls</b> window changes with a prompt to select points for calibration.<o:p></o:p></p> 1051 1052 <h3>Third: <o:p></o:p></h3> 982 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 983 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 984 minor-latin'>Operations/Calibrate</span></b> menu item (note this menu is on 985 the <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 986 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 987 minor-latin'>Image Controls</span></b> window or for the Mac, the <span 988 class=GramE><b style='mso-bidi-font-weight:normal'><span style='font-family: 989 "Calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: 990 minor-latin;mso-bidi-theme-font:minor-latin'>Image<span 991 style='mso-spacerun:yes'> </span>Controls</span></b></span> window must be 992 active to place this into the system menu bar). At this point the status line 993 on the bottom of the <b style='mso-bidi-font-weight:normal'><span 994 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 995 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Image 996 Controls</span></b> window changes with a prompt to select points for 997 calibration.</p> 998 999 <h3>Third: </h3> 1053 1000 1054 1001 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Use the left mouse 1055 1002 button to click on at least five locations on the innermost ring. As each point 1056 is defined, a red "+" is added to the plot. You need not hit the ring 1057 exactly as the code will search for the locally highest point. <o:p></o:p></p> 1003 is defined, a red "<b style='mso-bidi-font-weight:normal'><span 1004 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1005 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin;color:red'>+</span></b>" 1006 is added to the plot. You need not hit the ring exactly as the code will search 1007 for the locally highest point. </p> 1008 1009 <p class=MsoNormal><o:p> </o:p></p> 1058 1010 1059 1011 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1060 1012 id="Picture_x0020_8" o:spid="_x0000_i1029" type="#_x0000_t75" style='width:525pt; 1061 1013 height:450pt;visibility:visible;mso-wrap-style:square'> 1062 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image00 9.png"1014 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image006.png" 1063 1015 o:title=""/> 1064 1016 </v:shape><![endif]--><![if !vml]><img border=0 width=700 height=600 1065 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image009.png" 1066 v:shapes="Picture_x0020_8"><![endif]></span><o:p></o:p></p> 1017 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image006.png" 1018 v:shapes="Picture_x0020_8"><![endif]></span></p> 1019 1020 <p class=MsoNormal><o:p> </o:p></p> 1067 1021 1068 1022 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>To remove a point … … 1070 1024 you have a single-button mouse, hold the Command (<span style='font-family: 1071 1025 "Cambria Math","serif";mso-bidi-font-family:"Cambria Math"'>⌘</span>) key 1072 down and click]. < o:p></o:p></p>1073 1074 <h3><span style='mso-spacerun:yes'> </span>Fourth:< o:p></o:p></h3>1026 down and click]. </p> 1027 1028 <h3><span style='mso-spacerun:yes'> </span>Fourth:</h3> 1075 1029 1076 1030 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>When done, press the … … 1078 1032 if you have a single-button mouse, hold the Command (<span style='font-family: 1079 1033 "Cambria Math","serif";mso-bidi-font-family:"Cambria Math"'>⌘</span>) key 1080 down and click].<o:p></o:p></p> 1034 down and click].</p> 1035 1036 <p class=MsoNormal><o:p> </o:p></p> 1081 1037 1082 1038 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>The calibration is 1083 1039 then performed. First the rings are located and an ellipse is optimized for 1084 1040 each ring. The indexed rings are first shown in red as the calibration proceeds 1085 and center of each ellipse is noted with a blue "+". When all rings 1086 have been fitted, the entire ensemble of rings is refitted to the detector 1087 parameters and the rings are then shown in blue.<o:p></o:p></p> 1041 and center of each ellipse is noted with a blue "<span style='color:#4F81BD; 1042 mso-themecolor:accent1'>+</span>". When all rings have been fitted, the 1043 entire ensemble of rings is refitted to the detector parameters and the rings 1044 are then shown in blue. The beam position (blue <span style='font-family:"Calibri","sans-serif"; 1045 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1046 minor-latin;color:#4F81BD;mso-themecolor:accent1'>X</span>) is now correctly 1047 positioned.</p> 1048 1049 <p class=MsoNormal><o:p> </o:p></p> 1088 1050 1089 1051 <p class=MsoNormal><span style='mso-spacerun:yes'> </span><span … … 1091 1053 o:spid="_x0000_i1028" type="#_x0000_t75" style='width:525pt;height:450pt; 1092 1054 visibility:visible;mso-wrap-style:square'> 1055 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image007.png" 1056 o:title=""/> 1057 </v:shape><![endif]--><![if !vml]><img border=0 width=700 height=600 1058 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image007.png" 1059 v:shapes="Picture_x0020_9"><![endif]></span><span 1060 style='mso-spacerun:yes'> </span></p> 1061 1062 <p class=MsoNormal><o:p> </o:p></p> 1063 1064 <p class=MsoNormal>The derived calibration results are shown in the <b 1065 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1066 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1067 minor-latin'>Image Controls</span></b> window.</p> 1068 1069 <p class=MsoNormal><o:p> </o:p></p> 1070 1071 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1072 id="Picture_x0020_12" o:spid="_x0000_i1027" type="#_x0000_t75" style='width:510.75pt; 1073 height:303pt;visibility:visible;mso-wrap-style:square'> 1074 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image008.png" 1075 o:title=""/> 1076 </v:shape><![endif]--><![if !vml]><img border=0 width=681 height=404 1077 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image008.png" 1078 v:shapes="Picture_x0020_12"><![endif]></span><span 1079 style='mso-spacerun:yes'> </span></p> 1080 1081 <p class=MsoNormal><o:p> </o:p></p> 1082 1083 <p class=MsoNormal><span class=GramE>and</span> the console window shows 1084 details of the fit; a trial refinement for the wavelength is also given for you 1085 to consider.</p> 1086 1087 <p class=MsoNormal><o:p> </o:p></p> 1088 1089 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1090 id="Picture_x0020_14" o:spid="_x0000_i1026" type="#_x0000_t75" style='width:396.75pt; 1091 height:134.25pt;visibility:visible;mso-wrap-style:square'> 1092 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image009.png" 1093 o:title=""/> 1094 </v:shape><![endif]--><![if !vml]><img border=0 width=529 height=179 1095 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image009.png" 1096 v:shapes="Picture_x0020_14"><![endif]></span></p> 1097 1098 <p class=MsoNormal><o:p> </o:p></p> 1099 1100 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>To see the actual 1101 points selected by the program, click on the <b style='mso-bidi-font-weight: 1102 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1103 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>show 1104 ring picks?</span></b> <span class=GramE>check</span> box </p> 1105 1106 <p class=MsoNormal><o:p> </o:p></p> 1107 1108 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1109 id="Picture_x0020_15" o:spid="_x0000_i1025" type="#_x0000_t75" style='width:525pt; 1110 height:450pt;visibility:visible;mso-wrap-style:square'> 1093 1111 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image010.png" 1094 1112 o:title=""/> 1095 1113 </v:shape><![endif]--><![if !vml]><img border=0 width=700 height=600 1096 1114 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image010.png" 1097 v:shapes="Picture_x0020_9"><![endif]></span><span1098 style='mso-spacerun:yes'> </span></p>1099 1100 <p class=MsoNormal>The derived calibration results are shown in the Image1101 Controls window.<o:p></o:p></p>1102 1103 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape1104 id="Picture_x0020_12" o:spid="_x0000_i1027" type="#_x0000_t75" style='width:510.75pt;1105 height:303pt;visibility:visible;mso-wrap-style:square'>1106 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image011.png"1107 o:title=""/>1108 </v:shape><![endif]--><![if !vml]><img border=0 width=681 height=4041109 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image011.png"1110 v:shapes="Picture_x0020_12"><![endif]></span><span1111 style='mso-spacerun:yes'> </span></p>1112 1113 <p class=MsoNormal><span class=GramE>and</span> the console window shows1114 details of the fit; a trial refinement for the wavelength is also given for you1115 to consider.</p>1116 1117 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape1118 id="Picture_x0020_14" o:spid="_x0000_i1026" type="#_x0000_t75" style='width:396.75pt;1119 height:134.25pt;visibility:visible;mso-wrap-style:square'>1120 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image012.png"1121 o:title=""/>1122 </v:shape><![endif]--><![if !vml]><img border=0 width=529 height=1791123 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image012.png"1124 v:shapes="Picture_x0020_14"><![endif]></span><o:p></o:p></p>1125 1126 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>To see the actual1127 points selected by the program, click on the "show ring picks?" check1128 button <o:p></o:p></p>1129 1130 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape1131 id="Picture_x0020_15" o:spid="_x0000_i1025" type="#_x0000_t75" style='width:525pt;1132 height:450pt;visibility:visible;mso-wrap-style:square'>1133 <v:imagedata src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image013.png"1134 o:title=""/>1135 </v:shape><![endif]--><![if !vml]><img border=0 width=700 height=6001136 src="Calibration%20of%20an%20area%20detector%20in%20GSAS_files/image013.png"1137 1115 v:shapes="Picture_x0020_15"><![endif]></span><span 1138 style='mso-spacerun:yes'> </span></p> 1139 1140 <p class=MsoNormal>When this is done, it sometimes occurs that the points selected 1141 for the outermost ring are scattered between that and the next ring. This can 1142 be repaired by changing the pixel search range to 10 and using the <b 1143 style='mso-bidi-font-weight:normal'>Operations/Recalibrate</b> menu item.<o:p></o:p></p> 1116 style='mso-spacerun:yes'> </span><span style='color:#1F497D;mso-themecolor: 1117 text2'><o:p></o:p></span></p> 1118 1119 <p class=MsoNormal><o:p> </o:p></p> 1120 1121 <p class=MsoNormal>When this is done, it sometimes occurs that the points 1122 selected for the outermost rings are scattered between that and the next ring. 1123 This can be repaired by changing the pixel search range to 10 and using the <b 1124 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1125 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1126 minor-latin'>Operations/Recalibrate</span></b> menu item.</p> 1144 1127 1145 1128 <p class=MsoNormal>Assuming that these calibration results will be applied to 1146 1129 other images in the same GSAS-II project, click on <b style='mso-bidi-font-weight: 1147 normal'>Use as default for all images</b>. You may also save a copy of the 1148 calibration values to a file (<span class=SpellE><i style='mso-bidi-font-style: 1149 normal'>name</i><b style='mso-bidi-font-weight:normal'>.imctrl</b></span>) with 1150 the <b style='mso-bidi-font-weight:normal'>Operations/Save Controls</b> menu 1151 item. To save the project, including the now-derived calibration information, 1152 use the <b style='mso-bidi-font-weight:normal'>File/Save Project</b> menu item 1153 associated with the data tree window; as this project has not been saved before 1154 the file save dialog will need a file name. Dont enter the extension; it will 1155 be set to .<span class=SpellE>gpx</span>.<o:p></o:p></p> 1156 1157 <h2>Next step: <a href="Integration%20of%20area%20detector%20data%20in%20GSAS.htm">Integrate 1158 the Data</a></h2> 1130 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1131 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Use 1132 as default for all images</span></b>. You may also save a copy of the 1133 calibration values to a file <span style='font-family:"Calibri","sans-serif"; 1134 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1135 minor-latin'>(<span class=SpellE><i style='mso-bidi-font-style:normal'>name</i><b 1136 style='mso-bidi-font-weight:normal'>.imctrl</b></span></span>) with the <b 1137 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1138 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1139 minor-latin'>Operations/Save Controls</span></b> menu item. To save the 1140 project, including the now-derived calibration information, use the <b 1141 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1142 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1143 minor-latin'>File/Save</span> </b><b style='mso-bidi-font-weight:normal'><span 1144 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1145 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Project</span></b><span 1146 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1147 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'> </span>menu 1148 item associated with the data tree window; as this project has not been saved 1149 before the file save dialog will need a file name. Dont enter the extension; 1150 it will be set to <b style='mso-bidi-font-weight:normal'><span 1151 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1152 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>.<span 1153 class=SpellE>gpx</span></span></b>.</p> 1154 1155 <h2>Next step: <span class=MsoHyperlink><span style='color:#0070C0'><a 1156 href="Integration%20of%20area%20detector%20data%20in%20GSAS.htm"><u>Integrate 1157 the Data</u></a></span></span></h2> 1159 1158 1160 1159 </div> -
trunk/help/Calibration of an area detector in GSAS_files/filelist.xml
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trunk/help/Fit Peaks.htm
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662 1101 mso-style-priority:99; 663 mso-style-qformat:yes;664 1102 mso-style-parent:""; 665 1103 mso-padding-alt:0in 5.4pt 0in 5.4pt; … … 677 1115 </style> 678 1116 <![endif]--><!--[if gte mso 9]><xml> 679 <o:shapedefaults v:ext="edit" spidmax=" 2050"/>1117 <o:shapedefaults v:ext="edit" spidmax="1026"/> 680 1118 </xml><![endif]--><!--[if gte mso 9]><xml> 681 1119 <o:shapelayout v:ext="edit"> … … 684 1122 </head> 685 1123 686 <body lang=EN-US style='tab-interval:.5in'>1124 <body lang=EN-US link=blue vlink=purple style='tab-interval:.5in'> 687 1125 688 1126 <div class=WordSection1> 689 1127 690 <h1><span style='mso-spacerun:yes'> </span>Fit Peaks/<span class=SpellE>Autoindexing</span> 691 in GSAS-II </h1> 692 693 <p class=MsoNormal>In this exercise you will use the GSAS-II program to search 694 for a unit cell that matches a set of diffraction peaks -- a process known as 695 auto-indexing. First peaks must be located and optimized and then indexing can be 696 done.</p> 697 698 <h2>Step 1: read in data</h2> 699 700 <p class=MsoNormal>Download the sample data file and matching instrument 701 parameter file from these links:</p> 702 703 <p class=MsoNormal><span style='mso-spacerun:yes'> 704 </span>https://subversion.xor.aps.anl.gov/trac/pyGSAS/browser/Examples/powder%20data/11bmb_3844.fxye?format=raw</p> 705 706 <p class=MsoNormal><span style='mso-spacerun:yes'> 707 </span>https://subversion.xor.aps.anl.gov/trac/pyGSAS/browser/Examples/powder%20data/11bmb_3844.prm?format=raw</p> 708 709 <p class=MsoNormal><o:p> </o:p></p> 710 711 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>(One can also use 712 this links<span style='mso-spacerun:yes'> </span></p> 713 714 <p class=MsoNormal><span style='mso-spacerun:yes'> 715 </span>https://subversion.xor.aps.anl.gov/pyGSAS/Examples/powder%20data/11bmb_3844.fxye 716 and </p> 717 718 <p class=MsoNormal><span style='mso-spacerun:yes'> 719 </span>https://subversion.xor.aps.anl.gov/pyGSAS/Examples/powder%20data/11bmb_3844.prm</p> 720 721 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>to obtain the 722 file, but this is more complex).</p> 723 724 <p class=MsoNormal><o:p> </o:p></p> 725 726 <h2>Step 2: Start GSAS-II </h2> 727 728 <p class=MsoNormal><o:p> </o:p></p> 729 730 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>This is done in 731 different ways, depending on your OS and how GSAS-II is installed.</p> 732 733 <p class=MsoNormal><o:p> </o:p></p> 734 735 <p class=MsoNormal>=== Step 3: read in the data file ===</p> 736 737 <p class=MsoNormal><o:p> </o:p></p> 738 739 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Use the '''Data/Read 740 powder data''' menu item to read the data file into the current GSAS-II 741 project. </p> 1128 <h1>Fit Peaks/<span class=SpellE>Autoindexing</span> in GSAS-II </h1> 1129 1130 <p class=MsoNormal>In this exercise you will use GSAS-II to search for a unit 1131 cell that matches a set of diffraction peaks -- a process known as 1132 auto-indexing. First peaks must be located and optimized and then indexing can 1133 be done.</p> 1134 1135 <p class=MsoNormal><o:p> </o:p></p> 1136 1137 <p class=MsoNormal>If you have not done so already, <a 1138 href="Starting%20GSAS.htm">start GSAS-II</a>.</p> 1139 1140 <h2>Step 1: read in the data file</h2> 1141 1142 <p class=MsoListParagraphCxSpFirst style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span 1143 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>1.<span 1144 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Use 1145 the <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1146 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1147 minor-latin'>Data/Read powder data</span></b> menu item to read the data file 1148 into the current GSAS-II project. This read option is set to read any of the 1149 powder data formats (except neutron TOF time map files) defined for GSAS 1150 (angles in <span class=SpellE>centidegrees</span>). It will also read the <span 1151 class=SpellE><b style='mso-bidi-font-weight:normal'><span style='font-family: 1152 "Calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: 1153 minor-latin;mso-bidi-theme-font:minor-latin'>xye</span></b></span> format 1154 (angles in degrees) used by <span class=SpellE>Topas</span>, etc.<span 1155 style='mso-spacerun:yes'> </span>Change the file directory to <b 1156 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1157 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1158 minor-latin'>Exercises/LaB6</span></b><span style='font-family:"Calibri","sans-serif"; 1159 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1160 minor-latin'> to find the file; you may need to change the file type to <b 1161 style='mso-bidi-font-weight:normal'>All files (*.*)</b> to find the desired 1162 file.</span></p> 1163 1164 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span 1165 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>2.<span 1166 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Select 1167 the <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1168 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1169 minor-latin'>11bmb_3844.fxye</span></b><span style='font-family:"Calibri","sans-serif"; 1170 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1171 minor-latin'> data</span> file in the first dialog and press <b 1172 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1173 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1174 minor-latin'>Open</span></b>. There will be a Dialog box asking <span 1175 class=GramE><b style='mso-bidi-font-weight:normal'><span style='font-family: 1176 "Calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: 1177 minor-latin;mso-bidi-theme-font:minor-latin'>Is</span></b></span><b 1178 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1179 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1180 minor-latin'> this the file you want?</span></b> Press <span class=GramE><b 1181 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1182 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1183 minor-latin'>Yes</span></b></span> button to proceed.</p> 1184 1185 <p class=MsoListParagraphCxSpLast style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span 1186 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>3.<span 1187 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Select 1188 the <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1189 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1190 minor-latin'>11bmb_3844.prm</span></b> instrument parameter file in the second 1191 dialog and press <b style='mso-bidi-font-weight:normal'><span style='font-family: 1192 "Calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: 1193 minor-latin;mso-bidi-theme-font:minor-latin'>Open</span></b>. The 11BM-B 1194 instrument processing software automatically produced this file when the 1195 corresponding <span class=SpellE><b style='mso-bidi-font-weight:normal'><span 1196 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1197 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>fxye</span></b></span> 1198 file was created from the 12 detector raw data.</p> 1199 1200 <p class=MsoNormal><o:p> </o:p></p> 1201 1202 <p class=MsoNormal>At this point the <b style='mso-bidi-font-weight:normal'><span 1203 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1204 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>GSAS-II data 1205 tree</span></b> window will have several entries </p> 1206 1207 <p class=MsoNormal><o:p> </o:p></p> 1208 1209 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shapetype 1210 id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" 1211 path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"> 1212 <v:stroke joinstyle="miter"/> 1213 <v:formulas> 1214 <v:f eqn="if lineDrawn pixelLineWidth 0"/> 1215 <v:f eqn="sum @0 1 0"/> 1216 <v:f eqn="sum 0 0 @1"/> 1217 <v:f eqn="prod @2 1 2"/> 1218 <v:f eqn="prod @3 21600 pixelWidth"/> 1219 <v:f eqn="prod @3 21600 pixelHeight"/> 1220 <v:f eqn="sum @0 0 1"/> 1221 <v:f eqn="prod @6 1 2"/> 1222 <v:f eqn="prod @7 21600 pixelWidth"/> 1223 <v:f eqn="sum @8 21600 0"/> 1224 <v:f eqn="prod @7 21600 pixelHeight"/> 1225 <v:f eqn="sum @10 21600 0"/> 1226 </v:formulas> 1227 <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/> 1228 <o:lock v:ext="edit" aspectratio="t"/> 1229 </v:shapetype><v:shape id="Picture_x0020_1" o:spid="_x0000_i1047" type="#_x0000_t75" 1230 style='width:225pt;height:187.5pt;visibility:visible;mso-wrap-style:square'> 1231 <v:imagedata src="Fit%20Peaks_files/image001.png" o:title=""/> 1232 </v:shape><![endif]--><![if !vml]><img border=0 width=300 height=250 1233 src="Fit%20Peaks_files/image001.png" v:shapes="Picture_x0020_1"><![endif]></span></p> 1234 1235 <p class=MsoNormal><o:p> </o:p></p> 1236 1237 <p class=MsoNormal><span class=GramE>and</span> the plot window will show the 1238 powder pattern</p> 1239 1240 <p class=MsoNormal><o:p> </o:p></p> 1241 1242 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1243 id="Picture_x0020_2" o:spid="_x0000_i1046" type="#_x0000_t75" style='width:525pt; 1244 height:450pt;visibility:visible;mso-wrap-style:square'> 1245 <v:imagedata src="Fit%20Peaks_files/image002.png" o:title=""/> 1246 </v:shape><![endif]--><![if !vml]><img border=0 width=700 height=600 1247 src="Fit%20Peaks_files/image002.png" v:shapes="Picture_x0020_2"><![endif]></span></p> 1248 1249 <h2>Step 2: Select Limits </h2> 1250 1251 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>This pattern has much 1252 more data than we need, so it is helpful to cut down the range. Click on the <b 1253 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1254 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1255 minor-latin'>Limits</span></b> item in the <b style='mso-bidi-font-weight:normal'><span 1256 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1257 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>GSAS-II data 1258 tree</span></b>. The small window is repainted. Use the <b style='mso-bidi-font-weight: 1259 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1260 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>changed</span></b> 1261 row of entry boxes to set <span class=SpellE><b style='mso-bidi-font-weight: 1262 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1263 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Tmin</span></b></span> 1264 and <span class=SpellE><b style='mso-bidi-font-weight:normal'><span 1265 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1266 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Tmax</span></b></span> 1267 to <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1268 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1269 minor-latin'>4</span></b> and <b style='mso-bidi-font-weight:normal'><span 1270 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1271 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>27.5</span></b>. 1272 Notice on the plot that the limit lines have moved to these positions; the 1273 green lower limit is just below the 1<sup>st</sup> peak and the red upper limit 1274 is in a wide gap between peaks. You may also drag the limit lines to the 1275 desired location or place them by a left mouse click on a data point for the 1276 lower limit or a right click on a data point for the upper limit.</p> 1277 1278 <p class=MsoNormal><o:p> </o:p></p> 1279 1280 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1281 id="Picture_x0020_4" o:spid="_x0000_i1045" type="#_x0000_t75" style='width:225pt; 1282 height:120pt;visibility:visible;mso-wrap-style:square'> 1283 <v:imagedata src="Fit%20Peaks_files/image003.png" o:title=""/> 1284 </v:shape><![endif]--><![if !vml]><img border=0 width=300 height=160 1285 src="Fit%20Peaks_files/image003.png" v:shapes="Picture_x0020_4"><![endif]></span></p> 1286 1287 <h2>Step 3: Determine Peak Positions</h2> 1288 1289 <p class=MsoListParagraph style='margin-left:39.0pt;mso-add-space:auto; 1290 text-indent:-.25in;mso-list:l1 level1 lfo4'><![if !supportLists]><span 1291 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>1.<span 1292 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Click 1293 on the <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1294 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1295 minor-latin'>Peak List</span></b> item in the <b style='mso-bidi-font-weight: 1296 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1297 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>GSAS-II 1298 data tree</span></b>. This creates an empty window of peak positions (the <b 1299 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1300 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1301 minor-latin'>Limits</span></b> window is erased). At this point it is wise to </p> 1302 1303 <p class=MsoNormal><span style='mso-spacerun:yes'> </span><span class=GramE>zoom</span> 1304 in on the data that will be used for indexing. </p> 1305 1306 <p class=MsoNormal><o:p> </o:p></p> 1307 1308 <p class=MsoListParagraph style='margin-left:39.0pt;mso-add-space:auto; 1309 text-indent:-.25in;mso-list:l1 level1 lfo4'><![if !supportLists]><span 1310 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>2.<span 1311 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Click 1312 on the Zoom button, <span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1313 id="Picture_x0020_5" o:spid="_x0000_i1044" type="#_x0000_t75" style='width:21.75pt; 1314 height:18.75pt;visibility:visible;mso-wrap-style:square'> 1315 <v:imagedata src="Fit%20Peaks_files/image004.jpg" o:title="" croptop="1f" 1316 cropbottom="-1f" cropleft="35827f" cropright="19224f"/> 1317 </v:shape><![endif]--><![if !vml]><img border=0 width=29 height=25 1318 src="Fit%20Peaks_files/image005.jpg" v:shapes="Picture_x0020_5"><![endif]></span>, 1319 then press the left mouse in one corner of the region to be used; holding the 1320 mouse button down, drag over the region to the opposite corner; a box will be 1321 drawn over the region to be zoomed. </p> 1322 1323 <p class=MsoNormal><o:p> </o:p></p> 1324 1325 <p class=MsoListParagraph style='margin-left:39.0pt;mso-add-space:auto; 1326 text-indent:-.25in;mso-list:l1 level1 lfo4'><![if !supportLists]><span 1327 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>3.<span 1328 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 1329 style='mso-bidi-font-weight:normal'>Important</b>: Click on the Zoom <span 1330 style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_6" 1331 o:spid="_x0000_i1043" type="#_x0000_t75" style='width:23.25pt;height:20.25pt; 1332 visibility:visible;mso-wrap-style:square'> 1333 <v:imagedata src="Fit%20Peaks_files/image004.jpg" o:title="" croptop="1f" 1334 cropbottom="-1f" cropleft="35827f" cropright="19224f"/> 1335 </v:shape><![endif]--><![if !vml]><img border=0 width=31 height=27 1336 src="Fit%20Peaks_files/image006.jpg" v:shapes="Picture_x0020_6"><![endif]></span><span 1337 style='mso-spacerun:yes'> </span>button again to turn off the zoom mode. </p> 1338 1339 <p class=MsoNormal><o:p> </o:p></p> 1340 1341 <p class=MsoListParagraphCxSpFirst style='margin-left:39.0pt;mso-add-space: 1342 auto;text-indent:-.25in;mso-list:l1 level1 lfo4'><![if !supportLists]><span 1343 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>4.<span 1344 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Using 1345 the left mouse button, click on a data point near the top of each peak to be added 1346 to the peak list. It is usually best to start at the upper end of the pattern 1347 as the next peak to pick isnt obscured by the tool tip. As this is done, a 1348 vertical blue line is drawn in the plot window<span style='mso-spacerun:yes'> 1349 </span>for each peak selected</p> 1350 1351 <p class=MsoListParagraphCxSpMiddle><o:p> </o:p></p> 1352 1353 <p class=MsoListParagraphCxSpMiddle style='margin-left:39.0pt;mso-add-space: 1354 auto'><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="_x0000_i1042" 1355 type="#_x0000_t75" style='width:525pt;height:450pt;visibility:visible; 1356 mso-wrap-style:square'> 1357 <v:imagedata src="Fit%20Peaks_files/image007.png" o:title=""/> 1358 </v:shape><![endif]--><![if !vml]><img border=0 width=700 height=600 1359 src="Fit%20Peaks_files/image007.png" v:shapes="_x0000_i1042"><![endif]></span></p> 1360 1361 <p class=MsoListParagraphCxSpMiddle style='margin-left:39.0pt;mso-add-space: 1362 auto'><o:p> </o:p></p> 1363 1364 <p class=MsoListParagraphCxSpMiddle style='margin-left:39.0pt;mso-add-space: 1365 auto'><span class=GramE>and</span> peaks are added to the <b style='mso-bidi-font-weight: 1366 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1367 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Peak 1368 List</span></b> window in order of increasing 2<span style='font-family:Symbol'>Q</span>.</p> 1369 1370 <p class=MsoListParagraphCxSpMiddle style='margin-left:39.0pt;mso-add-space: 1371 auto'><o:p> </o:p></p> 1372 1373 <p class=MsoListParagraphCxSpMiddle style='margin-left:39.0pt;mso-add-space: 1374 auto'><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_7" 1375 o:spid="_x0000_i1041" type="#_x0000_t75" style='width:401.25pt;height:262.5pt; 1376 visibility:visible;mso-wrap-style:square'> 1377 <v:imagedata src="Fit%20Peaks_files/image008.png" o:title=""/> 1378 </v:shape><![endif]--><![if !vml]><img border=0 width=535 height=350 1379 src="Fit%20Peaks_files/image008.png" v:shapes="Picture_x0020_7"><![endif]></span></p> 1380 1381 <p class=MsoListParagraphCxSpMiddle style='margin-left:39.0pt;mso-add-space: 1382 auto'><o:p> </o:p></p> 1383 1384 <p class=MsoListParagraphCxSpMiddle style='margin-left:39.0pt;mso-add-space: 1385 auto'>Note that if peaks are not being added, you probably have not exited zoom 1386 mode.</p> 1387 1388 <p class=MsoListParagraphCxSpMiddle style='margin-left:39.0pt;mso-add-space: 1389 auto'><o:p> </o:p></p> 1390 1391 <p class=MsoListParagraphCxSpLast style='margin-left:39.0pt;mso-add-space:auto'>Add 1392 approximately 20-25 peaks total to the peak list (there will be 20 in this 1393 example). Be sure to add the lowest angle peaks that are visible in the plot. 1394 You may drag a peak position as needed; be sure the zoom/shift buttons are off. 1395 A position may be deleted with a right click with the mouse on the blue line.</p> 1396 1397 <h2>Step 4: Refine Peak Positions</h2> 1398 1399 <p class=MsoNormal>This refinement proceeds stepwise; first doing the default 1400 refinement and then adding <span class=GramE>a parameters</span> to complete 1401 the fitting,</p> 1402 1403 <p class=MsoNormal><o:p> </o:p></p> 1404 1405 <p class=MsoListParagraphCxSpFirst style='text-indent:-.25in;mso-list:l2 level1 lfo6'><![if !supportLists]><span 1406 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>1.<span 1407 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Refine 1408 the peak intensities and the background. These parameters have their refinement 1409 flags turned on by default. Use the menu item <b style='mso-bidi-font-weight: 1410 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1411 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Peak 1412 Fitting/LSQ <span class=SpellE>PeakFit</span> </span></b>on the<b 1413 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1414 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1415 minor-latin'> Peak List </span></b>window. Do <b style='mso-bidi-font-weight: 1416 normal'>NOT</b> use the <b style='mso-bidi-font-weight:normal'><span 1417 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1418 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Calculate/Refine</span></b> 1419 menu item in the <b style='mso-bidi-font-weight:normal'><span style='font-family: 1420 "Calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: 1421 minor-latin;mso-bidi-theme-font:minor-latin'>GSAS-II data tree</span></b> 1422 window; that it to be used for Rietveld/Pawley refinements. You will be asked 1423 to save the current project before the fit will proceed; change directory if 1424 desired and provide a suitable name (we assume <b style='mso-bidi-font-weight: 1425 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1426 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>LaB6</span></b>). 1427 A window will show the progress of the refinement and will close when the 1428 least-squares fit <span class=GramE>is</span> complete (usually very fast). The 1429 plot is updated with the fit, the peak list window is updated with the new peak 1430 values and a summary of the refinement is shown on the console window as well.</p> 1431 1432 <p class=MsoListParagraphCxSpMiddle><o:p> </o:p></p> 1433 1434 <p class=MsoListParagraphCxSpMiddle><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1435 id="Picture_x0020_8" o:spid="_x0000_i1040" type="#_x0000_t75" style='width:525pt; 1436 height:450pt;visibility:visible;mso-wrap-style:square'> 1437 <v:imagedata src="Fit%20Peaks_files/image009.png" o:title=""/> 1438 </v:shape><![endif]--><![if !vml]><img border=0 width=700 height=600 1439 src="Fit%20Peaks_files/image009.png" v:shapes="Picture_x0020_8"><![endif]></span></p> 1440 1441 <p class=MsoListParagraphCxSpMiddle><o:p> </o:p></p> 1442 1443 <p class=MsoListParagraphCxSpLast><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1444 id="Picture_x0020_9" o:spid="_x0000_i1039" type="#_x0000_t75" style='width:401.25pt; 1445 height:262.5pt;visibility:visible;mso-wrap-style:square'> 1446 <v:imagedata src="Fit%20Peaks_files/image010.png" o:title=""/> 1447 </v:shape><![endif]--><![if !vml]><img border=0 width=535 height=350 1448 src="Fit%20Peaks_files/image010.png" v:shapes="Picture_x0020_9"><![endif]></span></p> 1449 1450 <p class=MsoNormal><o:p> </o:p></p> 1451 1452 <p class=MsoListParagraphCxSpFirst style='text-indent:-.25in;mso-list:l2 level1 lfo6'><![if !supportLists]><span 1453 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>2.<span 1454 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Now 1455 add refinement of the peak positions. This can be done by clicking on all the refinement 1456 flags for the individual peaks or it is possible to set them all at the same 1457 time using this recipe: </p> 1458 1459 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: 1460 auto;text-indent:-.25in;mso-list:l2 level2 lfo6'><![if !supportLists]><span 1461 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>a.<span 1462 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 1463 class=GramE>single-click</span> on any value in the table to select it, for 1464 example the first peak position. A black box appears around the value. If the 1465 field if opened for editing (the box turns to blue), select a different item in 1466 the table.</p> 1467 1468 <p class=MsoListParagraphCxSpLast style='margin-left:1.0in;mso-add-space:auto; 1469 text-indent:-.25in;mso-list:l2 level2 lfo6'><![if !supportLists]><span 1470 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>b.<span 1471 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 1472 class=GramE>double-click</span> on the refine label above the peak position 1473 check-boxes. The entire column of checkboxes is highlighted in blue. Press the <b 1474 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1475 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1476 minor-latin'>y</span></b> key to turn on all refinement flags (<b 1477 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1478 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1479 minor-latin'>n</span></b> would turn them off).</p> 742 1480 743 1481 <p class=MsoNormal><span style='mso-spacerun:yes'> </span></p> 744 1482 745 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Select the 746 {{{11bmb_3844.fxye}}} data file in the first dialog and press Open.</p> 747 748 <p class=MsoNormal><o:p> </o:p></p> 749 750 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Select the 751 {{{11bmb_3844.prm}}} instrument parameter file in the second dialog and press 752 Open.</p> 753 754 <p class=MsoNormal><o:p> </o:p></p> 755 756 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>At this point the 757 data tree window will have several entries </p> 758 759 <p class=MsoNormal><span style='mso-spacerun:yes'> 760 </span>([https://subversion.xor.aps.anl.gov/trac/pyGSAS/attachment/wiki/DemoAutoIndex/d3w2.png 761 view]);</p> 762 763 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>and the plot 764 window will show the powder pattern</p> 765 766 <p class=MsoNormal><span style='mso-spacerun:yes'> 767 </span>([https://subversion.xor.aps.anl.gov/trac/pyGSAS/attachment/wiki/DemoAutoIndex/d3w1.png 768 view]).</p> 769 770 <p class=MsoNormal><o:p> </o:p></p> 771 772 <p class=MsoNormal>=== Step 4: Select Data Range ===</p> 773 774 <p class=MsoNormal><o:p> </o:p></p> 775 776 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>This pattern has much 777 more data than we need, so it is helpful to cut down the range. Click on the Limits 778 item in the data tree. A new window is created. Use the "changed" row 779 of entry boxes to set <span class=SpellE>Tmin</span> and <span class=SpellE>Tmax</span> 780 to 4 and 30. You may also drag the limits lines to the desired location or 781 place them by a left mouse click on a data point for the lower limit or a right 782 click on a data point for the upper limit.</p> 783 784 <p class=MsoNormal><span 785 style='mso-spacerun:yes'> </span>([https://subversion.xor.aps.anl.gov/trac/pyGSAS/attachment/wiki/DemoAutoIndex/d3w3.png 786 view]). </p> 787 788 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Note the green and 789 red vertical lines in the plot window move. </p> 790 791 <p class=MsoNormal><o:p> </o:p></p> 792 793 <p class=MsoNormal><o:p> </o:p></p> 794 795 <p class=MsoNormal>=== Step 5: Determine Peak Positions ===</p> 796 797 <p class=MsoNormal><o:p> </o:p></p> 798 799 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Click on the Peak 800 List item in the data tree. This creates an empty window of peak positions. At 801 this point it is wise to </p> 802 803 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>zoom in on the data 804 that will be used for indexing. This can be done by clicking on this button:</p> 805 806 <p class=MsoNormal><o:p> </o:p></p> 807 808 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Click on the 809 magnification button: [[Image(d3z1.png)]], then press the left mouse in one 810 corner of the region to be used; holding the mouse button down, drag over the 811 region to the opposite corner. </p> 812 813 <p class=MsoNormal><o:p> </o:p></p> 814 815 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>'''Important:''' 816 Click on the magnification [[Image(d3z1.png)]] button again to turn off the 817 zoom mode. </p> 818 819 <p class=MsoNormal><o:p> </o:p></p> 820 821 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Using the left mouse 822 button click on a data point near the top of each peak to be added to the peak 823 list. As this is done, a line is </p> 824 825 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>drawn in the plot 826 window</p> 827 828 <p class=MsoNormal><span style='mso-spacerun:yes'> 829 </span>([https://subversion.xor.aps.anl.gov/trac/pyGSAS/attachment/wiki/DemoAutoIndex/d3w4.png 830 view]) and</p> 831 832 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>peaks are added to 833 the Peak List window</p> 834 835 <p class=MsoNormal><span style='mso-spacerun:yes'> 836 </span>([https://subversion.xor.aps.anl.gov/trac/pyGSAS/attachment/wiki/DemoAutoIndex/d3w5.png 837 view]). Note that if peaks are </p> 838 839 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>not being added, you 840 probably have not exited zoom mode.</p> 841 842 <p class=MsoNormal><o:p> </o:p></p> 843 844 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Once peaks in that 845 region have been added, move to a new region of the pattern. This can be done 846 by clicking on the shift button: [[Image(d3z2.png)]]. Dragging with the left 847 mouse will shift the data to follow the mouse. Clicking with the right button (on 848 the Mac, control + mouse) and moving up increases the vertical scale and to the 849 right increases the horizontal scale.<span style='mso-spacerun:yes'> 850 </span>'''Important:''' Click on the shift [[Image(d3z2.png)]] button again to 851 turn off this mode. </p> 852 853 <p class=MsoNormal><o:p> </o:p></p> 854 855 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Again, using the 856 left mouse button, click on the tops of more peaks to be added to the peak 857 list. Note that if peaks are </p> 858 859 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>not being added, you 860 probably have not exited shift mode.</p> 861 862 <p class=MsoNormal><o:p> </o:p></p> 863 864 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Add approximately 24 865 peaks total to the peak list. Be sure to add the lowest angle peaks that are 866 visible in the plot. You may drag a peak position as needed; be sure the 867 zoom/shift buttons are off. A position may be deleted with a right click with 868 the mouse on the blue line.</p> 869 870 <p class=MsoNormal><o:p> </o:p></p> 871 872 <p class=MsoNormal>=== Step 6: Refine Peak Positions ===</p> 873 874 <p class=MsoNormal><o:p> </o:p></p> 875 876 <p class=MsoNormal>First, refine the peak intensities and the background. These 877 parameters have their refinement flag turned on by default. Use the menu item 878 '''Peak Fitting/LSQ !<span class=SpellE>PeakFit</span>'''. A window will show 879 the progress of the refinement and will close when the least squares is 880 complete. A summary of the refinement is shown on the console window as well.</p> 881 882 <p class=MsoNormal><o:p> </o:p></p> 883 884 <p class=MsoNormal>Second, add refinement of the peak positions. This can be 885 done by clicking on all the refinement flags for the individual peaks or it is 886 possible to set them all at the same time using this recipe: </p> 887 888 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>* single-click on any 889 value in the table to select it, for example the first peak position. A black 890 box appears around the value. If the field if opened for editing (the box turns 891 to blue), select a different item in the table.</p> 892 893 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>* double-click on the 894 refine label above the peak position check-boxes. The entire column of 895 checkboxes is highlighted in blue. Press the y key to turn on all refinement 896 flags (n would turn them off).</p> 1483 <p class=MsoListParagraph style='text-indent:-.25in;mso-list:l2 level1 lfo6'><![if !supportLists]><span 1484 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>3.<span 1485 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Next, 1486 repeat the refinement using the <b style='mso-bidi-font-weight:normal'><span 1487 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1488 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Peak 1489 Fitting/LSQ <span class=SpellE>PeakFit</span></span></b> menu item in the <b 1490 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1491 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1492 minor-latin'>Peak List</span></b> window.</p> 897 1493 898 1494 <p class=MsoNormal><span style='mso-spacerun:yes'> </span></p> 899 1495 900 <p class=MsoNormal>Third, repeat the refinement using the '''Peak Fitting/LSQ !<span 901 class=SpellE>PeakFit</span>''' menu item.</p> 902 903 <p class=MsoNormal><span style='mso-spacerun:yes'> </span></p> 904 905 <p class=MsoNormal>Fourth, select peak widths for refinement. This can be done 906 by refining sigma (Gaussian width) and/or gamma (Lorentzian width) for 907 individual peaks, but here we constrain the peaks to follow an instrumental 908 broadening equation. Select the Instrumental Parameters item in the data tree. </p> 909 910 <p class=MsoNormal>This opens a window for peak profile terms</p> 911 912 <p class=MsoNormal>([https://subversion.xor.aps.anl.gov/trac/pyGSAS/attachment/wiki/DemoAutoIndex/d3w6.png 913 view]). </p> 914 915 <p class=MsoNormal>Select the refine flag checkbox for Gaussian U, V, W, 916 Lorentzian X, Y and the asymmetry parameter SH/L. </p> 917 918 <p class=MsoNormal><o:p> </o:p></p> 919 920 <p class=MsoNormal>Fifth, repeat the refinement. First click on the Peak List 921 item in the data tree and then refine using the '''Peak Fitting/LSQ !<span 922 class=SpellE>PeakFit</span>''' menu item. At this point a good fit should be 923 seen by zooming in on individual peaks. (For example see </p> 924 925 <p class=MsoNormal>[https://subversion.xor.aps.anl.gov/trac/pyGSAS/attachment/wiki/DemoAutoIndex/d3w7.png 926 this]). The <span class=SpellE>Rwp</span> is ~6% as shown on the console 927 window.</p> 928 929 <p class=MsoNormal><o:p> </o:p></p> 930 931 <p class=MsoNormal>=== Prepare Indexing Peak List ===</p> 932 933 <p class=MsoNormal><o:p> </o:p></p> 1496 <p class=MsoListParagraphCxSpFirst style='text-indent:-.25in;mso-list:l2 level1 lfo6'><![if !supportLists]><span 1497 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>4.<span 1498 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Now, 1499 select peak widths for refinement. This can be done by refining sigma (Gaussian 1500 width) and/or gamma (Lorentzian width) for individual peaks, but here we can 1501 constrain the peaks to follow an instrumental broadening equation. Select the <b 1502 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1503 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1504 minor-latin'>Instrumental Parameters</span></b> item in the data tree. This 1505 opens a window for peak profile terms<br> 1506 <br> 1507 <span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_10" 1508 o:spid="_x0000_i1038" type="#_x0000_t75" style='width:422.25pt;height:154.5pt; 1509 visibility:visible;mso-wrap-style:square'> 1510 <v:imagedata src="Fit%20Peaks_files/image011.png" o:title=""/> 1511 </v:shape><![endif]--><![if !vml]><img border=0 width=563 height=206 1512 src="Fit%20Peaks_files/image011.png" v:shapes="Picture_x0020_10"><![endif]></span></p> 1513 1514 <p class=MsoListParagraphCxSpMiddle><o:p> </o:p></p> 1515 1516 <p class=MsoListParagraphCxSpLast>The plot window shows the resolution curves 1517 corresponding to the values of the Gaussian U, V, W, Lorentzian X & Y 1518 coefficients; + marks show the individual values based on the sig & gam 1519 values for the peaks in Peak List. Select the refine flag checkbox for Gaussian 1520 U, V, W, and Lorentzian X, Y. </p> 1521 1522 <p class=MsoNormal><o:p> </o:p></p> 1523 1524 <p class=MsoListParagraphCxSpFirst style='text-indent:-.25in;mso-list:l2 level1 lfo6'><![if !supportLists]><span 1525 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>5.<span 1526 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Then, 1527 repeat the refinement. First click on the <b style='mso-bidi-font-weight:normal'><span 1528 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1529 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Peak List</span></b> 1530 item in the data tree and then refine using the <b style='mso-bidi-font-weight: 1531 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1532 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Peak 1533 Fitting/LSQ <span class=SpellE>PeakFit</span></span></b> menu item. At this 1534 point a good fit should be seen by zooming in on individual peaks. (For example 1535 see </p> 1536 1537 <p class=MsoListParagraphCxSpMiddle><o:p> </o:p></p> 1538 1539 <p class=MsoListParagraphCxSpMiddle><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1540 id="Picture_x0020_11" o:spid="_x0000_i1037" type="#_x0000_t75" style='width:525pt; 1541 height:450pt;visibility:visible;mso-wrap-style:square'> 1542 <v:imagedata src="Fit%20Peaks_files/image012.png" o:title=""/> 1543 </v:shape><![endif]--><![if !vml]><img border=0 width=700 height=600 1544 src="Fit%20Peaks_files/image012.png" v:shapes="Picture_x0020_11"><![endif]></span></p> 1545 1546 <p class=MsoListParagraphCxSpMiddle><o:p> </o:p></p> 1547 1548 <p class=MsoListParagraphCxSpLast>The <span class=SpellE>Rwp</span> is ~6% as 1549 shown on the console window. Again the <b style='mso-bidi-font-weight:normal'><span 1550 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1551 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Peak List</span></b> 1552 entries are all updated with new values and those in <b style='mso-bidi-font-weight: 1553 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1554 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Instrument 1555 Parameters</span></b> are also updated.</p> 1556 1557 <h2><span class=GramE>Step 5.</span> Prepare Indexing Peak List</h2> 934 1558 935 1559 <p class=MsoNormal>A separate list of peaks is kept for use in <span 936 class=SpellE>autoindexing</span>. This list is manipulated by clicking on the 937 Index Peak List item in the data tree. In the initially empty window created by 938 this action, use menu item '''Index Peaks Operations/Load''' to copy over the 939 fitted peaks from the Peak List tree entry</p> 940 941 <p class=MsoNormal>([https://subversion.xor.aps.anl.gov/trac/pyGSAS/attachment/wiki/DemoAutoIndex/d4w1.png 942 view]). </p> 943 944 <p class=MsoNormal>Note that by default all peaks are selected to be used. </p> 945 946 <p class=MsoNormal><o:p> </o:p></p> 947 948 <p class=MsoNormal>=== Run <span class=SpellE>Autoindexing</span> ===</p> 949 950 <p class=MsoNormal><o:p> </o:p></p> 951 952 <p class=MsoNormal>Select the Unit Cells List data item. This brings up a 953 window for indexing and cell refinement options</p> 954 955 <p class=MsoNormal>([https://subversion.xor.aps.anl.gov/trac/pyGSAS/attachment/wiki/DemoAutoIndex/d4w2.png 956 view]). For the most rapid search (since we know the right answer), select 957 Cubic-P and launch the search using menu item '''Cell Index/Index Cell'''. The 958 search then runs and he console shows a running list of possible cells as they 959 are found; the sorted by M20 list of possible matching cells is shown in the 960 window</p> 961 962 <p class=MsoNormal>([https://subversion.xor.aps.anl.gov/trac/pyGSAS/attachment/wiki/DemoAutoIndex/d4w3.png 963 view]). </p> 964 965 <p class=MsoNormal><o:p> </o:p></p> 966 967 <p class=MsoNormal>=== Review Cell Choices === </p> 968 969 <p class=MsoNormal><o:p> </o:p></p> 970 971 <p class=MsoNormal>Review the list of cells associated with the Unit Cells List 972 data item. Note that as one selects a unit cell, the generated reflections for that 973 cell are shown in the plot with dashed red lines. Sliding the cursor over these 974 lines shows a small popup window with the indexed <span class=SpellE>hkl</span> 975 for them. Note how the 8.312 A cell generates very many lines with no 976 corresponding peaks </p> 977 978 <p class=MsoNormal>([https://subversion.xor.aps.anl.gov/trac/pyGSAS/attachment/wiki/DemoAutoIndex/d4w4.png 979 view])</p> 980 981 <p class=MsoNormal>while the 2.939 A cell generates not enough lines to match 982 all the peaks</p> 983 984 <p class=MsoNormal>([https://subversion.xor.aps.anl.gov/trac/pyGSAS/attachment/wiki/DemoAutoIndex/d4w5.png 985 view]). </p> 986 987 <p class=MsoNormal><o:p> </o:p></p> 988 989 <p class=MsoNormal>=== Select/Refine Cell === </p> 990 991 <p class=MsoNormal><o:p> </o:p></p> 992 993 <p class=MsoNormal>Select the top option, a 4.1568 A cell with M20 figure of 994 merit of 2700. This indexes all peaks, though peak positions are not exactly 995 perfect if one zooms in enough. Import the cell information using the '''Cell 996 Index/Copy Cell''' menu option. Then optimize the cell by refining the lattice 997 parameters and the two-theta zero: click on the refine checkbox next to the 998 Zero offset value and then the '''Cell Index/Refine Cell''' menu option. The a 999 cell parameter value shifts from 4.15679 to 4.15684 when zero is refined. </p> 1000 1001 <p class=MsoNormal><o:p> </o:p></p> 1002 1003 <p class=MsoNormal>(Optional) Finally, use of the '''Cell Index/New phase''' 1004 menu option allows one to assign a phase with these lattice parameters to the 1005 data set (histogram). A name for the new phase is then requested. This adds a 1006 Phases entry to the data tree, as well as an entry for the new phase. This new 1007 phase can be used in future code.</p> 1560 class=SpellE>autoindexing</span>. It is found in the <b style='mso-bidi-font-weight: 1561 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1562 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Index 1563 Peak List</span></b> item in the data tree. In the initially empty window 1564 created by this action, use menu item <b style='mso-bidi-font-weight:normal'><span 1565 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1566 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Index Peaks 1567 Operations/Load</span></b> to copy the fitted peaks from the <b 1568 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1569 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1570 minor-latin'>Peak List</span></b>.</p> 1571 1572 <p class=MsoNormal><o:p> </o:p></p> 1573 1574 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1575 id="Picture_x0020_12" o:spid="_x0000_i1036" type="#_x0000_t75" style='width:367.5pt; 1576 height:225pt;visibility:visible;mso-wrap-style:square'> 1577 <v:imagedata src="Fit%20Peaks_files/image013.png" o:title=""/> 1578 </v:shape><![endif]--><![if !vml]><img border=0 width=490 height=300 1579 src="Fit%20Peaks_files/image013.png" v:shapes="Picture_x0020_12"><![endif]></span></p> 1580 1581 <p class=MsoNormal><o:p> </o:p></p> 1582 1583 <p class=MsoNormal>Note that by default all peaks are selected to be used. You 1584 may choose to not use a fitted peak (e.g. if suspected as from a contaminant).</p> 1585 1586 <h2><span class=GramE>Step 6.</span> Run <span class=SpellE>Autoindexing</span></h2> 1587 1588 <p class=MsoNormal>Select the <b style='mso-bidi-font-weight:normal'><span 1589 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1590 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Unit Cells 1591 List</span></b> data item. This brings up a window for indexing and cell 1592 refinement options</p> 1593 1594 <p class=MsoNormal><o:p> </o:p></p> 1595 1596 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1597 id="Picture_x0020_13" o:spid="_x0000_i1035" type="#_x0000_t75" style='width:527.25pt; 1598 height:204pt;visibility:visible;mso-wrap-style:square'> 1599 <v:imagedata src="Fit%20Peaks_files/image014.png" o:title=""/> 1600 </v:shape><![endif]--><![if !vml]><img border=0 width=703 height=272 1601 src="Fit%20Peaks_files/image014.png" v:shapes="Picture_x0020_13"><![endif]></span></p> 1602 1603 <p class=MsoNormal><o:p> </o:p></p> 1604 1605 <p class=MsoNormal>For the most rapid search (since we know the right answer), 1606 select <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1607 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1608 minor-latin'>Cubic-P</span></b> and launch the search using menu item <b 1609 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1610 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1611 minor-latin'>Cell Index/Index Cell</span></b>. The search then runs and the 1612 console shows a running list of possible cells as they are found; the sorted by 1613 M20 list of possible matching cells is shown in the <b style='mso-bidi-font-weight: 1614 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1615 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Unit 1616 Cells List</span></b> window</p> 1617 1618 <p class=MsoNormal><o:p> </o:p></p> 1619 1620 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1621 id="Picture_x0020_14" o:spid="_x0000_i1034" type="#_x0000_t75" style='width:527.25pt; 1622 height:376.5pt;visibility:visible;mso-wrap-style:square'> 1623 <v:imagedata src="Fit%20Peaks_files/image015.png" o:title=""/> 1624 </v:shape><![endif]--><![if !vml]><img border=0 width=703 height=502 1625 src="Fit%20Peaks_files/image015.png" v:shapes="Picture_x0020_14"><![endif]></span></p> 1626 1627 <h2><span class=GramE>Step 7.</span> Review Cell Choices</h2> 1628 1629 <p class=MsoNormal>Review the list of cells associated with the <b 1630 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1631 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1632 minor-latin'>Unit Cells List</span></b> data item. Note that as one selects a 1633 unit cell, the generated reflections for that cell are shown in the plot with 1634 dashed red lines. Sliding the cursor over these lines shows a small popup 1635 window with the indexed <span class=SpellE>hkl</span> for them. Note how the 1636 first cell in the list (M20=2961.34) with a=5.87864 Å generates very many lines 1637 with no corresponding peaks</p> 1638 1639 <p class=MsoNormal><o:p> </o:p></p> 1640 1641 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1642 id="Picture_x0020_15" o:spid="_x0000_i1033" type="#_x0000_t75" style='width:525pt; 1643 height:450pt;visibility:visible;mso-wrap-style:square'> 1644 <v:imagedata src="Fit%20Peaks_files/image016.png" o:title=""/> 1645 </v:shape><![endif]--><![if !vml]><img border=0 width=700 height=600 1646 src="Fit%20Peaks_files/image016.png" v:shapes="Picture_x0020_15"><![endif]></span><span 1647 style='mso-spacerun:yes'> </span></p> 1648 1649 <p class=MsoNormal><o:p> </o:p></p> 1650 1651 <p class=MsoNormal><span class=GramE>while</span> the (M20=609.02) cell with 1652 a=2.93932 Å generates not enough lines to match all the peaks</p> 1653 1654 <p class=MsoNormal><o:p> </o:p></p> 1655 1656 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1657 id="Picture_x0020_16" o:spid="_x0000_i1032" type="#_x0000_t75" style='width:525pt; 1658 height:450pt;visibility:visible;mso-wrap-style:square'> 1659 <v:imagedata src="Fit%20Peaks_files/image017.png" o:title=""/> 1660 </v:shape><![endif]--><![if !vml]><img border=0 width=700 height=600 1661 src="Fit%20Peaks_files/image017.png" v:shapes="Picture_x0020_16"><![endif]></span></p> 1662 1663 <h2><span class=GramE>Step 8.</span> Select/Refine Cell</h2> 1664 1665 <p class=MsoNormal>Select the cell with M20 = 2961.34 with a = 4.1568 Å. This 1666 indexes all peaks with almost a perfect fit to the peak positions (compare 1667 dashed red lines to solid blue ones). Import the cell information using the <b 1668 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1669 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1670 minor-latin'>Cell Index/Copy Cell</span></b> menu option. Then optimize the 1671 cell by refining the lattice parameters and the two-theta zero: click on the 1672 refine checkbox next to the <b style='mso-bidi-font-weight:normal'><span 1673 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1674 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Zero offset</span></b> 1675 value and then the <b style='mso-bidi-font-weight:normal'><span 1676 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1677 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Cell 1678 Index/Refine Cell</span></b> menu option. <span class=GramE>The a</span> cell 1679 parameter value shifts from 4.15679 to 4.15684 when zero is refined. Press the <b 1680 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1681 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1682 minor-latin'>Show refined <span class=SpellE>hkl</span> positions + Zero offset</span></b> 1683 button to update the plot including the refined <b style='mso-bidi-font-weight: 1684 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1685 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Zero 1686 offset</span></b> (in this case hardly anything happens!) </p> 1687 1688 <p class=MsoNormal><o:p> </o:p></p> 1689 1690 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1691 id="Picture_x0020_17" o:spid="_x0000_i1031" type="#_x0000_t75" style='width:527.25pt; 1692 height:334.5pt;visibility:visible;mso-wrap-style:square'> 1693 <v:imagedata src="Fit%20Peaks_files/image018.png" o:title=""/> 1694 </v:shape><![endif]--><![if !vml]><img border=0 width=703 height=446 1695 src="Fit%20Peaks_files/image018.png" v:shapes="Picture_x0020_17"><![endif]></span></p> 1696 1697 <p class=MsoNormal><o:p> </o:p></p> 1698 1699 <p class=MsoNormal>Notice that a new entry heads the list in the <b 1700 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1701 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1702 minor-latin'>Indexing Result</span></b> section of the <b style='mso-bidi-font-weight: 1703 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1704 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Cell 1705 Index/Refine</span></b> window with an improved M20(=3614.66) and a new value 1706 for <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1707 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1708 minor-latin'>Zero offset</span></b> is shown.</p> 1709 1710 <p class=MsoNormal><o:p> </o:p></p> 1711 1712 <p class=MsoNormal>(Optional) Finally, use of the <b style='mso-bidi-font-weight: 1713 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1714 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Cell 1715 Index/New phase</span></b> menu option allows one to create a phase with these 1716 lattice parameters in the data tree under <b style='mso-bidi-font-weight:normal'><span 1717 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1718 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Phases</span></b>.<span 1719 style='mso-spacerun:yes'> </span>A name for the new phase is requested. This 1720 creates the tree item <b style='mso-bidi-font-weight:normal'><span 1721 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1722 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Phases</span></b> 1723 (if it wasnt already present). This new phase can be used in future analysis 1724 (e.g. Rietveld or Pawley refinement).</p> 1725 1726 <p class=MsoNormal><o:p> </o:p></p> 1727 1728 <p class=MsoNormal>To continue with the second part of this exercise, <span 1729 class=GramE>do the menu item</span> <b style='mso-bidi-font-weight:normal'><span 1730 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1731 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>File/Close 1732 project</span></b> in the <b style='mso-bidi-font-weight:normal'><span 1733 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1734 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>GSAS-II data 1735 tree </span></b>window. You will be asked if you want it saved; if <span 1736 class=GramE><b style='mso-bidi-font-weight:normal'><span style='font-family: 1737 "Calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: 1738 minor-latin;mso-bidi-theme-font:minor-latin'>Yes</span></b></span> then all the 1739 peak fitting/indexing & cell refinement results will be saved to the <b 1740 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1741 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1742 minor-latin'>LaB6.gpx</span></b> file. If <b style='mso-bidi-font-weight:normal'><span 1743 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1744 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>No</span></b> 1745 then the file will remain as it was when created at Step 4 above.</p> 1746 1747 <h1>2<sup>nd</sup> Fit Peaks/<span class=SpellE>Autoindexing</span> in GSAS-II </h1> 1748 1749 <p class=MsoNormal>In this exercise we will fit peaks and index them for the 1750 new mineral <span class=SpellE>jadarite</span> (aka kryptonite). The data was 1751 also collected on 11BM-B at APS. The unit cell is monoclinic so is a more 1752 substantial test of the indexing capability of GSAS-II.</p> 1753 1754 <h2><span class=GramE>Step 1.</span> Read in the data. </h2> 1755 1756 <p class=MsoNormal>The file is <b style='mso-bidi-font-weight:normal'><span 1757 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1758 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>\Exercises\<span 1759 class=SpellE>krptonite</span>\11bmb_6231.fxye</span></b>; it has a 1760 corresponding <span class=SpellE><b style='mso-bidi-font-weight:normal'><span 1761 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1762 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>prm</span></b></span> 1763 file. Load them in & the plot is</p> 1764 1765 <p class=MsoNormal><o:p> </o:p></p> 1766 1767 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1768 id="Picture_x0020_18" o:spid="_x0000_i1030" type="#_x0000_t75" style='width:525pt; 1769 height:450pt;visibility:visible;mso-wrap-style:square'> 1770 <v:imagedata src="Fit%20Peaks_files/image019.png" o:title=""/> 1771 </v:shape><![endif]--><![if !vml]><img border=0 width=700 height=600 1772 src="Fit%20Peaks_files/image019.png" v:shapes="Picture_x0020_18"><![endif]></span></p> 1773 1774 <p class=MsoNormal><o:p> </o:p></p> 1775 1776 <p class=MsoNormal>Ive zoomed in & shifted the plot some to highlight the 1777 lower part of the pattern.</p> 1778 1779 <h2>Step 2 Set limits</h2> 1780 1781 <p class=MsoNormal>Set the limits as 3 and 10.</p> 1782 1783 <h2>Step 3 Pick peaks</h2> 1784 1785 <p class=MsoNormal>Pick all peaks you can see between the limits (including the 1786 small ones). Note some peaks have shoulders most notably at 5.07, 6.04, 1787 7.81deg. I found 28 peaks (there were a few very weak ones I skipped they 1788 might be from a second phase? Well see later).</p> 1789 1790 <p class=MsoNormal><o:p> </o:p></p> 1791 1792 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1793 id="Picture_x0020_19" o:spid="_x0000_i1029" type="#_x0000_t75" style='width:525pt; 1794 height:450pt;visibility:visible;mso-wrap-style:square'> 1795 <v:imagedata src="Fit%20Peaks_files/image020.png" o:title=""/> 1796 </v:shape><![endif]--><![if !vml]><img border=0 width=700 height=600 1797 src="Fit%20Peaks_files/image020.png" v:shapes="Picture_x0020_19"><![endif]></span></p> 1798 1799 <h2><span class=GramE>Step 4.</span> Refine peaks</h2> 1800 1801 <p class=MsoNormal>Following the steps above, refine the peaks and the profile 1802 shape parameters in Instrument parameters. You will be asked for a project file 1803 name at the first refinement (I used <span class=SpellE>jadarite</span>). In 1804 the end my refinement converged at <span class=SpellE>Rwp</span>=13.18% and 1805 some peaks do show some discrepancy as the sample is more complex than the 1806 simple U, V, W, X, Y model can accommodate. However, this is good enough to 1807 proceed.</p> 1808 1809 <h2><span class=GramE>Step 5.</span> Prepare Indexing Peak List</h2> 1810 1811 <p class=MsoNormal>As before do <b style='mso-bidi-font-weight:normal'><span 1812 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1813 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Operations/Load/Reload</span></b> 1814 in the <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1815 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1816 minor-latin'>Index Peak List</span></b> window.</p> 1817 1818 <h2><span class=GramE>Step 6.</span> Index the cell</h2> 1819 1820 <p class=MsoNormal>Lets assume that we know the cell in primitive monoclinic. 1821 In a real world case we wouldnt know this and we would have to try each <span 1822 class=SpellE>Bravais</span> lattice. These can be done as a group, but it takes 1823 time to go through all the bad cases.</p> 1824 1825 <p class=MsoNormal>Select <b style='mso-bidi-font-weight:normal'><span 1826 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1827 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Monoclinic-P</span></b> 1828 and do <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1829 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1830 minor-latin'>Cell Index/Refine/Index cell</span></b> in the <b 1831 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1832 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1833 minor-latin'>Unit Cells List</span></b> window. Progress will be much slower 1834 and suitable results will be slow in coming so be patient. Watch the console 1835 window; the right answer will have an obviously large M20 (~630) and a volume 1836 of ~594Å<sup>3</sup> (10<sup>th</sup> column of console display). Once this is 1837 seen (it may take more than one try to get this) you can stop the indexing 1838 search by pressing <b style='mso-bidi-font-weight:normal'><span 1839 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1840 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Cancel</span></b> 1841 on the progress bar window. It may take more than one press to fully stop it. 1842 My result was </p> 1843 1844 <p class=MsoNormal><o:p> </o:p></p> 1845 1846 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1847 id="Picture_x0020_20" o:spid="_x0000_i1028" type="#_x0000_t75" style='width:527.25pt; 1848 height:376.5pt;visibility:visible;mso-wrap-style:square'> 1849 <v:imagedata src="Fit%20Peaks_files/image021.png" o:title=""/> 1850 </v:shape><![endif]--><![if !vml]><img border=0 width=703 height=502 1851 src="Fit%20Peaks_files/image021.png" v:shapes="Picture_x0020_20"><![endif]></span></p> 1852 1853 <p class=MsoNormal><o:p> </o:p></p> 1854 1855 <p class=MsoNormal>Notice an equally good M20 result with twice the volume. The 1856 plot shows every peak indexed including a couple of weak peaks not selected for 1857 the peak fitting.</p> 1858 1859 <p class=MsoNormal><o:p> </o:p></p> 1860 1861 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1862 id="Picture_x0020_21" o:spid="_x0000_i1027" type="#_x0000_t75" style='width:525pt; 1863 height:450pt;visibility:visible;mso-wrap-style:square'> 1864 <v:imagedata src="Fit%20Peaks_files/image022.png" o:title=""/> 1865 </v:shape><![endif]--><![if !vml]><img border=0 width=700 height=600 1866 src="Fit%20Peaks_files/image022.png" v:shapes="Picture_x0020_21"><![endif]></span></p> 1867 1868 <p class=MsoNormal><o:p> </o:p></p> 1869 1870 <p class=MsoNormal>Although the weak peak at 2<span style='font-family:Symbol'>Q</span>~7.3 1871 has a shoulder that wasnt indexed. I presume that is a contaminant. By sliding 1872 the cursor over the index lines without any visible peak you can see that the 1873 missing ones are (010, 100, 001, 110, 030, 111, 20-1, 10-2, 041, 050, 21-2, 1874 23-1, 22-2, 141, 201,102, 15-1, 112, & 24-1). Many of these are accidental 1875 but the 0k0; k≠2n and h0l; h+l≠2n ones characterize the space group 1876 P2<sub>1</sub>/n. Armed with this information you can <b style='mso-bidi-font-weight: 1877 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1878 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Make 1879 new phase</span></b> for the indexed cell (I called it kryptonite) and set 1880 the space group in the Phase Data for kryptonite window.</p> 1881 1882 <p class=MsoNormal><o:p> </o:p></p> 1883 1884 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1885 id="Picture_x0020_22" o:spid="_x0000_i1026" type="#_x0000_t75" style='width:597.75pt; 1886 height:214.5pt;visibility:visible;mso-wrap-style:square'> 1887 <v:imagedata src="Fit%20Peaks_files/image023.png" o:title=""/> 1888 </v:shape><![endif]--><![if !vml]><img border=0 width=797 height=286 1889 src="Fit%20Peaks_files/image023.png" v:shapes="Picture_x0020_22"><![endif]></span></p> 1890 1891 <p class=MsoNormal><o:p> </o:p></p> 1892 1893 <p class=MsoNormal>Setting the space group will show a window with some 1894 information. Press <b style='mso-bidi-font-weight:normal'><span 1895 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1896 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>OK</span></b> 1897 to close it.</p> 1898 1899 <p class=MsoNormal><o:p> </o:p></p> 1900 1901 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1902 id="Picture_x0020_23" o:spid="_x0000_i1025" type="#_x0000_t75" style='width:333.75pt; 1903 height:209.25pt;visibility:visible;mso-wrap-style:square'> 1904 <v:imagedata src="Fit%20Peaks_files/image024.png" o:title=""/> 1905 </v:shape><![endif]--><![if !vml]><img border=0 width=445 height=279 1906 src="Fit%20Peaks_files/image024.png" v:shapes="Picture_x0020_23"><![endif]></span></p> 1907 1908 <p class=MsoNormal><o:p> </o:p></p> 1909 1910 <p class=MsoNormal>This concludes this exercise. The features of the Phase Data 1911 window will be presented in other exercises.</p> 1008 1912 1009 1913 </div> -
trunk/help/Fit Peaks_files/filelist.xml
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trunk/help/Integration of area detector data in GSAS.htm
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917 font-family:"Calibri","sans-serif"; 904 918 mso-ascii-font-family:Calibri; 905 919 mso-ascii-theme-font:minor-latin; … … 929 943 mso-style-noshow:yes; 930 944 mso-style-priority:99; 931 mso-style-qformat:yes;932 945 mso-style-parent:""; 933 946 mso-padding-alt:0in 5.4pt 0in 5.4pt; … … 945 958 </style> 946 959 <![endif]--><!--[if gte mso 9]><xml> 947 <o:shapedefaults v:ext="edit" spidmax=" 3074"/>960 <o:shapedefaults v:ext="edit" spidmax="1026"/> 948 961 </xml><![endif]--><!--[if gte mso 9]><xml> 949 962 <o:shapelayout v:ext="edit"> … … 961 974 detector at APS 11-ID-C with a wavelength 0.10798 A, where the detector was 962 975 intentionally tilted at 45 degrees, are used. Note that menu entries are listed 963 in <b style='mso-bidi-font-weight:normal'>bold face</b> below as <b 964 style='mso-bidi-font-weight:normal'>Help/About GSAS-II</b>, which lists first 965 the name of the menu (here <b style='mso-bidi-font-weight:normal'>Help</b>) and 966 second the name of the entry in the menu (here <b style='mso-bidi-font-weight: 967 normal'>About GSAS-II</b>).</p> 976 in <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 977 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 978 minor-latin'>bold face</span></b> below as <b style='mso-bidi-font-weight:normal'><span 979 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 980 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Help/About 981 GSAS-II</span></b>, which lists first the name of the menu (here <b 982 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 983 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 984 minor-latin'>Help</span></b>) and second the name of the entry in the menu 985 (here <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 986 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 987 minor-latin'>About GSAS-II</span></b>).</p> 968 988 969 989 <h2>Prerequisite:<span style='mso-spacerun:yes'> </span><a … … 971 991 972 992 <p class=MsoNormal>This assumes that an image data set has been read in and 973 calibration results have been derived, see the<span style='mso-spacerun:yes'> 974 </span><a href="Calibration%20of%20an%20area%20detector%20in%20GSAS.htm">Calibration 975 Demo</a></p> 993 calibration results have been derived, see the <a 994 href="Calibration%20of%20an%20area%20detector%20in%20GSAS.htm">Calibration Demo</a></p> 976 995 977 996 <h2>Step 1: Clear calibration plot</h2> … … 979 998 <p class=MsoNormal>Assuming the previous step was calibration, the image plot 980 999 will show the located rings and possibly all the picked points. These are no 981 longer needed. The <b style='mso-bidi-font-weight:normal'>Image Controls/Clear 982 Calibration</b> menu entry removes these from the plot, but<u> does not clear 983 the calibration results</u>. Use of this menu item is not required, but does 984 speed future display of results. </p> 1000 longer needed. The <b style='mso-bidi-font-weight:normal'><span 1001 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1002 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Image 1003 Controls/Clear Calibration</span></b> menu entry removes these from the plot, 1004 but<u> does not clear the calibration results</u>. Use of this menu item is not 1005 required, but does speed future display of results. </p> 985 1006 986 1007 <h2>Step 2: Integration Settings</h2> 987 1008 988 1009 <p class=MsoNormal>In the simplest case, all that is needed is to click on the <b 989 style='mso-bidi-font-weight:normal'>Do full integration?</b> check box and 990 adjust the inner and outer 2-theta values with the <b style='mso-bidi-font-weight: 991 normal'>Inner 2-theta</b> and<b style='mso-bidi-font-weight:normal'> Outer 992 2-theta</b> controls. Change the limits to 1 and 7 for this data. Note that 993 changes are displayed when numbers are placed in the boxes only after pressing 994 return or by clicking on some other item in the window or by pressing the tab key. 995 </p> 1010 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1011 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1012 minor-latin'>Do full integration?</span></b> <span class=GramE>check</span> box 1013 and adjust the inner and outer 2-theta values with the <b style='mso-bidi-font-weight: 1014 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1015 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Inner 1016 2-theta</span></b> and<b style='mso-bidi-font-weight:normal'> </b><b 1017 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1018 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1019 minor-latin'>Outer 2-theta</span></b> controls. Change the limits to <b 1020 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1021 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1022 minor-latin'>1</span></b> and <b style='mso-bidi-font-weight:normal'><span 1023 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1024 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>7</span></b> 1025 for this data. Note that changes are displayed when numbers are placed in the 1026 boxes only after pressing return or tab key or by clicking on some other item 1027 in the window.</p> 1028 1029 <p class=MsoNormal><span style='mso-spacerun:yes'> </span></p> 996 1030 997 1031 <p class=MsoNormal>It is helpful to see the two-theta limits on the plot 998 1032 visually, while adjusting the two-theta range. This is done by clicking on the <b 999 style='mso-bidi-font-weight:normal'>Show integration limits?</b> check box. 1000 Note that inner limit is shown as a green ellipse at 2deg and the outer is 1033 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1034 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1035 minor-latin'>Show integration limits?</span></b> <span class=GramE>check</span> 1036 box. Note that inner limit is shown as a green ellipse at 2deg and the outer is 1001 1037 shown as a red ellipse at 5deg by default. These limits may also be dragged to 1002 1038 the desired values; a small popup window shows the value. </p> 1039 1040 <p class=MsoNormal><o:p> </o:p></p> 1003 1041 1004 1042 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shapetype … … 1027 1065 o:title=""/> 1028 1066 </v:shape><![endif]--><![if !vml]><img border=0 width=624 height=370 1029 src="Integration%20of%20area%20detector%20data%20in%20GSAS_files/image00 8.png"1067 src="Integration%20of%20area%20detector%20data%20in%20GSAS_files/image002.png" 1030 1068 v:shapes="Picture_x0020_2"><![endif]></span></p> 1031 1069 1032 1070 <h3>Other useful controls:</h3> 1033 1071 1034 <p class=MsoNormal><b style='mso-bidi-font-weight:normal'>Azimuth offset</b>: 1035 The image vertical axis (from the beam center, going down) is labeled with the 1036 azimuth value placed in the <b style='mso-bidi-font-weight:normal'>Azimuth 1037 offset</b> box. This is usually zero.</p> 1038 1039 <p class=MsoNormal><b style='mso-bidi-font-weight:normal'>Start/End azimuth</b>: 1040 The integration is started at the Start azimuth angle in the left box, and when 1041 the <b style='mso-bidi-font-weight:normal'>Do full integration?</b> checkbox is 1042 not checked, the integration will be run only to the maximum value specified. 1043 When the range is less than 360 degrees, the integration range will be shown 1044 (if selected) with the high and low limits plotted and only segments of the max 1045 and min ellipses drawn. These limits may also be dragged on the plot to desired 1046 locations.</p> 1047 1048 <p class=MsoNormal><b style='mso-bidi-font-weight:normal'>Number of 2-theta 1049 bins</b>: The resulting 1-D powder pattern after integration will consist of 1050 this many points. This number should be on the order of the number of pixels in 1051 one direction (since resolution cannot be much better than this) or less, if 1052 instrumental resolution does not require that many points.</p> 1053 1054 <p class=MsoNormal>Some trial and error may be needed, but there should more 1055 than 6 points across each peak full-width-at-half-maximum (FWHM) in the final 1056 pattern to be useful for further analysis.</p> 1057 1058 <p class=MsoNormal><b style='mso-bidi-font-weight:normal'>Number of azimuth 1059 bins</b>: In cases where the diffraction experiment shows changes as a function 1060 of azimuthal angle, the integration can be performed as a function of angle. 1061 This number specifies the number of bins to use by azimuthal angle. The process 1062 of breaking up the integration in this way is sometimes called 1063 "caking" since the integration region grows with distance from the 1064 beam-center, with a shape like a slice of cake or pie. When more than one 1072 <p class=MsoNormal><b style='mso-bidi-font-weight:normal'><span 1073 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1074 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Azimuth 1075 offset</span></b>: The image vertical axis (from the beam center, going down) 1076 is labeled with the azimuth value placed in the <b style='mso-bidi-font-weight: 1077 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1078 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Azimuth 1079 offset</span></b> box. This is usually zero unless the image plate has been 1080 rotated about its normal axis.</p> 1081 1082 <p class=MsoNormal><o:p> </o:p></p> 1083 1084 <p class=MsoNormal><b style='mso-bidi-font-weight:normal'><span 1085 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1086 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Start/End 1087 azimuth</span></b>: The integration is started at the Start azimuth angle in 1088 the left box, and when the <b style='mso-bidi-font-weight:normal'><span 1089 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1090 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Do full 1091 integration?</span></b> <span class=GramE>checkbox</span> is not checked, the 1092 integration will be run only to the maximum value specified. When the range is 1093 less than 360 degrees, the integration range will be shown (if selected) with 1094 the high and low limits plotted and only segments of the max and min ellipses 1095 drawn. These limits may also be dragged on the plot to desired locations.</p> 1096 1097 <p class=MsoNormal><o:p> </o:p></p> 1098 1099 <p class=MsoNormal><b style='mso-bidi-font-weight:normal'><span 1100 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1101 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Number of 1102 2-theta bins</span></b>: The resulting 1-D powder pattern after integration 1103 will consist of this many points. This number should be on the order of the 1104 number of pixels in one direction (since resolution cannot be much better than 1105 this) or less, if instrumental resolution and sample broadening does not 1106 require that many points. Some trial and error may be needed, but there should 1107 more than 6 points across each peak full-width-at-half-maximum (FWHM) in the 1108 final pattern to be useful for further analysis.</p> 1109 1110 <p class=MsoNormal><o:p> </o:p></p> 1111 1112 <p class=MsoNormal><b style='mso-bidi-font-weight:normal'><span 1113 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1114 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Number of 1115 azimuth bins</span></b>: In cases where the diffraction experiment shows 1116 changes as a function of azimuthal angle, the integration can be performed as a 1117 function of angle. This number specifies the number of bins to use by azimuthal 1118 angle. The process of breaking up the integration in this way is sometimes 1119 called "caking" since the integration region grows with distance from 1120 the beam-center, with a shape like a slice of cake or pie. When more than one 1065 1121 azimuthal bin is used, the regions are shown in the plot with dashed lines, 1066 1122 when the Show integration limits?" check box is checked. </p> 1067 1123 1068 <p class=MsoNormal><b style='mso-bidi-font-weight:normal'>Background Image </b>and<b 1069 style='mso-bidi-font-weight:normal'> Multiplier</b>: You can designate a 1070 previously read in image as <b style='mso-bidi-font-weight:normal'>Background</b> 1071 which will then be used to modify each data image as they are integrated. Note 1072 that the <b style='mso-bidi-font-weight:normal'>Multiplier</b> must be negative 1073 for it to be subtracted. Note that all images used in this way must be exactly 1074 the same format (number of pixels & pixel size).</p> 1124 <p class=MsoNormal><o:p> </o:p></p> 1125 1126 <p class=MsoNormal><b style='mso-bidi-font-weight:normal'><span 1127 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1128 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Background 1129 Image</span> </b>and<b style='mso-bidi-font-weight:normal'> </b><b 1130 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1131 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1132 minor-latin'>Multiplier</span></b>: You can designate a previously read in 1133 image as background which will then be used to modify each data image as they 1134 are integrated. Note that the <b style='mso-bidi-font-weight:normal'><span 1135 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1136 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Multiplier</span></b> 1137 must be negative for it to be subtracted. Note that all images used in this way 1138 must be exactly the same format (number of pixels & pixel size).</p> 1139 1140 <p class=MsoNormal><o:p> </o:p></p> 1075 1141 1076 1142 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape … … 1080 1146 o:title=""/> 1081 1147 </v:shape><![endif]--><![if !vml]><img border=0 width=624 height=535 1082 src="Integration%20of%20area%20detector%20data%20in%20GSAS_files/image00 9.png"1148 src="Integration%20of%20area%20detector%20data%20in%20GSAS_files/image004.png" 1083 1149 v:shapes="Picture_x0020_1"><![endif]></span></p> 1084 1150 … … 1086 1152 1087 1153 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>Use the <b 1088 style='mso-bidi-font-weight:normal'>Image Operations/Integrate</b> image data 1089 menu item to start the integration. This will take at least a few seconds. If 1090 multiple images have been read in, the <b style='mso-bidi-font-weight:normal'>Integrate 1091 All</b> menu item can be used. This is most useful when the <b 1092 style='mso-bidi-font-weight:normal'>Use as Default</b> option is in use for one 1093 image.</p> 1154 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1155 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1156 minor-latin'>Image Operations/Integrate</span></b> image data menu item to 1157 start the integration. This will take at least a few seconds. If multiple 1158 images have been read in, the <b style='mso-bidi-font-weight:normal'><span 1159 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1160 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Integrate All</span></b> 1161 menu item can be used. This is most useful when the <b style='mso-bidi-font-weight: 1162 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1163 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Use 1164 as Default</span></b> option is in use for one image.</p> 1094 1165 1095 1166 <p class=MsoNormal><span style='mso-spacerun:yes'> </span>At this point the 1096 1167 data tree window will have new entries as each azimuthal "slice" 1097 1168 added to the data tree as a powder pattern</p> 1169 1170 <p class=MsoNormal><o:p> </o:p></p> 1098 1171 1099 1172 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape … … 1107 1180 style='mso-spacerun:yes'> </span></p> 1108 1181 1109 <p class=MsoNormal>two plots are added to the plot window: One (with tab 2D 1110 Integration) shows the diffraction intensity as a function of both 2-theta and 1111 (when there is more than one azimuthal integration region) azimuthal angle</p> 1182 <p class=MsoNormal>Two plots are added to the plot window: One (with tab <b 1183 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 1184 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 1185 minor-latin'>2D Integration</span></b>) shows the diffraction intensity as a function 1186 of both 2-theta and (when there is more than one azimuthal integration region) 1187 azimuthal angle.</p> 1188 1189 <p class=MsoNormal><o:p> </o:p></p> 1112 1190 1113 1191 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape … … 1119 1197 src="Integration%20of%20area%20detector%20data%20in%20GSAS_files/image006.png" 1120 1198 v:shapes="Picture_x0020_4"><![endif]></span><span 1121 style='mso-spacerun:yes'> </span>c</p> 1122 1123 <p class=MsoNormal>and a conventional 1-D powder pattern(s) for each 1124 "slice"</p> 1199 style='mso-spacerun:yes'> </span></p> 1200 1201 <p class=MsoNormal><o:p> </o:p></p> 1202 1203 <p class=MsoNormal><span class=GramE>and</span> a conventional 1-D powder 1204 pattern(s) for each "slice"</p> 1205 1206 <p class=MsoNormal><o:p> </o:p></p> 1125 1207 1126 1208 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape … … 1133 1215 v:shapes="Picture_x0020_5"><![endif]></span></p> 1134 1216 1135 <p class=MsoNormal>Again you should save the project with <b style='mso-bidi-font-weight:1136 normal'>File/Save project</b> on the main GSAS-II data tree menu.</p>1137 1138 <h2>Next demo: <a href="Fit%20Peaks.htm">Fit Peaks and <span class=SpellE>Autoindexing</span></a></h2>1139 1140 1217 <p class=MsoNormal><o:p> </o:p></p> 1141 1218 1219 <p class=MsoNormal>Again you could save the project with <b style='mso-bidi-font-weight: 1220 normal'><span style='font-family:"Calibri","sans-serif";mso-ascii-theme-font: 1221 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>File/Save 1222 project</span></b> on the main <b style='mso-bidi-font-weight:normal'><span 1223 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 1224 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>GSAS-II data 1225 tree</span></b> menu although it is not needed for any further tutorials.</p> 1226 1227 <h2>Next demo: <a href="Fit%20Peaks.htm"><span style='color:windowtext; 1228 text-decoration:none;text-underline:none'>Fit Peaks and <span class=SpellE>Autoindexing</span></span></a></h2> 1229 1230 <p class=MsoNormal><o:p> </o:p></p> 1231 1142 1232 </div> 1143 1233 -
trunk/help/Integration of area detector data in GSAS_files/filelist.xml
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782 797 mso-ascii-font-family:Calibri; 783 798 mso-ascii-theme-font:minor-latin; … … 788 803 mso-bidi-font-family:"Times New Roman"; 789 804 mso-bidi-theme-font:minor-bidi;} 790 .MsoPapDefault791 {mso-style-type:export-only;792 margin-bottom:10.0pt;793 line-height:115%;}794 805 @page WordSection1 795 806 {size:8.5in 11.0in; … … 811 822 mso-style-noshow:yes; 812 823 mso-style-priority:99; 813 mso-style-qformat:yes;814 824 mso-style-parent:""; 815 825 mso-padding-alt:0in 5.4pt 0in 5.4pt; 816 mso-para-margin-top:0in; 817 mso-para-margin-right:0in; 818 mso-para-margin-bottom:10.0pt; 819 mso-para-margin-left:0in; 820 line-height:115%; 821 mso-pagination:widow-orphan; 822 font-size:11.0pt; 826 mso-para-margin:0in; 827 mso-para-margin-bottom:.0001pt; 828 mso-pagination:widow-orphan; 829 font-size:10.0pt; 823 830 font-family:"Calibri","sans-serif"; 824 831 mso-ascii-font-family:Calibri; … … 830 837 </style> 831 838 <![endif]--><!--[if gte mso 9]><xml> 832 <o:shapedefaults v:ext="edit" spidmax=" 2050"/>839 <o:shapedefaults v:ext="edit" spidmax="1026"/> 833 840 </xml><![endif]--><!--[if gte mso 9]><xml> 834 841 <o:shapelayout v:ext="edit"> … … 847 854 848 855 <p class=MsoNormal>One common way is start a console window, set the current 849 directory to the location of GSAS- II <span style='mso-spacerun:yes'> </span>and850 then enter:</p>856 directory to the location of GSAS-<span class=GramE>II<span 857 style='mso-spacerun:yes'> </span>and</span> then enter:</p> 851 858 852 859 <p class=MsoNormal><o:p> </o:p></p> 853 860 854 <p class=MsoNormal>< b style='mso-bidi-font-weight:normal'><span861 <p class=MsoNormal><span class=GramE><b style='mso-bidi-font-weight:normal'><span 855 862 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 856 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>python 857 GSASII.py<o:p></o:p></span></b></p> 863 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>python</span></b></span><b 864 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri","sans-serif"; 865 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font: 866 minor-latin'> GSASII.py<o:p></o:p></span></b></p> 858 867 859 868 <p class=MsoNormal><b style='mso-bidi-font-weight:normal'><span … … 869 878 <p class=MsoNormal>On Windows, there is a GSASII.bat file in the main GSASII 870 879 directory you can use as a shortcut. Put a shortcut to it someplace convenient 871 (maybe yourDesktop?) </p>880 (maybe <span class=GramE>your</span> Desktop?) </p> 872 881 873 882 <p class=MsoNormal><o:p> </o:p></p> … … 877 886 style='font-family:"Calibri","sans-serif";mso-ascii-theme-font:minor-latin; 878 887 mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Calibri;mso-bidi-theme-font: 879 minor-latin'>GSASII data tree</span></span>, the second, immediately under the first880 is labeled <b style='mso-bidi-font-weight:normal'><span style='font-family:888 minor-latin'>GSASII data tree</span></span>, the second, immediately under the 889 first is labeled <b style='mso-bidi-font-weight:normal'><span style='font-family: 881 890 "Calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: 882 891 minor-latin;mso-bidi-theme-font:minor-latin'>GSAS-II data display</span></b> … … 885 894 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>GSAS-II Plots</span></b>. 886 895 These windows may be moved anywhere on the screen. On Linux and Windows a menu 887 bar appears at the top of<span style='mso-spacerun:yes'> </span>the data tree 888 and data display windows; on a Mac these menus will appear in the system menu 889 bar location (usually at the screen top) depending on which GSAS-II window has 890 the focus. On my Windows machine the screen looked like</p> 896 bar appears at the top <span class=GramE>of<span style='mso-spacerun:yes'> 897 </span>the</span> data tree and data display windows; on a Mac these menus will 898 appear in the system menu bar location (usually at the screen top) depending on 899 which GSAS-II window has the focus. On my Windows machine the screen looked 900 like</p> 891 901 892 902 <p class=MsoNormal><o:p> </o:p></p> … … 912 922 <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/> 913 923 <o:lock v:ext="edit" aspectratio="t"/> 914 </v:shapetype><v:shape id="Picture_x0020_3" o:spid="_x0000_i102 5" type="#_x0000_t75"924 </v:shapetype><v:shape id="Picture_x0020_3" o:spid="_x0000_i1026" type="#_x0000_t75" 915 925 style='width:468pt;height:263.25pt;visibility:visible;mso-wrap-style:square'> 916 926 <v:imagedata src="Starting%20GSAS_files/image001.png" o:title=""/> … … 925 935 file name is saved.) The console window displays a banner and some information 926 936 about the version of python and the packages used by GSAS-II. This console 927 window (here in the lower left) will display important information as data processing 928 by GSAS-II proceeds. You may wish to cut-and-paste parts of this window to 929 another place if desired.</p> 937 window (here in the lower left) will display important information as data 938 processing by GSAS-II proceeds. You may wish to cut-and-paste parts of this 939 window to another place if desired.</p> 940 941 <p class=MsoNormal><o:p> </o:p></p> 942 943 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 944 id="Picture_x0020_2" o:spid="_x0000_i1025" type="#_x0000_t75" style='width:465.75pt; 945 height:215.25pt;visibility:visible;mso-wrap-style:square'> 946 <v:imagedata src="Starting%20GSAS_files/image003.png" o:title=""/> 947 </v:shape><![endif]--><![if !vml]><img width=621 height=287 948 src="Starting%20GSAS_files/image004.gif" v:shapes="Picture_x0020_2"><![endif]></span></p> 949 950 <p class=MsoNormal><o:p> </o:p></p> 951 952 <p class=MsoNormal>We suggest that you change the properties of this window to 953 (in Windows: Properties/Layout) to have 9999 for the height and 150 for the 954 width and to allow <span class=SpellE>QuickEdit</span> Mode (if available) 955 for easy cut/paste operation. You can perhaps also change the font, font size, 956 font color and background color if desired.</p> 930 957 931 958 </div> -
trunk/help/Starting GSAS_files/filelist.xml
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trunk/help/gsasII.html
r586 r588 8 8 <meta http-equiv=Content-Type content="text/html; charset=us-ascii"> 9 9 <meta name=ProgId content=Word.Document> 10 <meta name=Generator content="Microsoft Word 1 2">11 <meta name=Originator content="Microsoft Word 1 2">10 <meta name=Generator content="Microsoft Word 14"> 11 <meta name=Originator content="Microsoft Word 14"> 12 12 <link rel=File-List href="gsasII_files/filelist.xml"> 13 13 <link rel=Edit-Time-Data href="gsasII_files/editdata.mso"> … … 25 25 <o:Author>Von Dreele</o:Author> 26 26 <o:LastAuthor>Von Dreele</o:LastAuthor> 27 <o:Revision>8 1</o:Revision>27 <o:Revision>82</o:Revision> 28 28 <o:TotalTime>2819</o:TotalTime> 29 29 <o:Created>2011-11-28T16:49:00Z</o:Created> 30 <o:LastSaved>2012-05-05T1 4:55:00Z</o:LastSaved>30 <o:LastSaved>2012-05-05T15:39:00Z</o:LastSaved> 31 31 <o:Pages>8</o:Pages> 32 <o:Words>719 0</o:Words>33 <o:Characters>4 0988</o:Characters>32 <o:Words>7195</o:Words> 33 <o:Characters>41018</o:Characters> 34 34 <o:Company>Argonne National Laboratory</o:Company> 35 35 <o:Lines>341</o:Lines> 36 36 <o:Paragraphs>96</o:Paragraphs> 37 <o:CharactersWithSpaces>48 082</o:CharactersWithSpaces>38 <o:Version>1 2.00</o:Version>37 <o:CharactersWithSpaces>48117</o:CharactersWithSpaces> 38 <o:Version>14.00</o:Version> 39 39 </o:DocumentProperties> 40 40 </xml><![endif]--> 41 41 <link rel=dataStoreItem href="gsasII_files/item0010.xml" 42 target="gsasII_files/props0 011.xml">42 target="gsasII_files/props011.xml"> 43 43 <link rel=themeData href="gsasII_files/themedata.thmx"> 44 44 <link rel=colorSchemeMapping href="gsasII_files/colorschememapping.xml"> … … 47 47 <w:Zoom>FullPage</w:Zoom> 48 48 <w:SpellingState>Clean</w:SpellingState> 49 <w:GrammarState>Clean</w:GrammarState> 49 50 <w:TrackMoves>false</w:TrackMoves> 50 51 <w:TrackFormatting/> … … 473 474 font-weight:bold;} 474 475 p.MsoTitle, li.MsoTitle, div.MsoTitle 475 {mso-style-priority:10; 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604 608 color:blue; 605 609 text-decoration:underline; … … 869 873 mso-hansi-font-family:"Courier New"; 870 874 mso-bidi-font-family:"Courier New";} 875 span.TitleChar 876 {mso-style-name:"Title Char"; 877 mso-style-priority:10; 878 mso-style-unhide:no; 879 mso-style-locked:yes; 880 mso-style-link:Title; 881 mso-ansi-font-size:26.0pt; 882 mso-bidi-font-size:26.0pt; 883 font-family:"Cambria","serif"; 884 mso-ascii-font-family:Cambria; 885 mso-ascii-theme-font:major-latin; 886 mso-fareast-font-family:"Times New Roman"; 887 mso-fareast-theme-font:major-fareast; 888 mso-hansi-font-family:Cambria; 889 mso-hansi-theme-font:major-latin; 890 mso-bidi-font-family:"Times New Roman"; 891 mso-bidi-theme-font:major-bidi; 892 color:#17365D; 893 mso-themecolor:text2; 894 mso-themeshade:191; 895 letter-spacing:.25pt; 896 mso-font-kerning:14.0pt;} 871 897 span.DocumentMapChar 872 898 {mso-style-name:"Document Map Char"; … … 899 925 mso-hansi-font-family:Tahoma; 900 926 mso-bidi-font-family:Tahoma;} 901 span.TitleChar902 {mso-style-name:"Title Char";903 mso-style-priority:10;904 mso-style-unhide:no;905 mso-style-locked:yes;906 mso-style-link:Title;907 mso-ansi-font-size:26.0pt;908 mso-bidi-font-size:26.0pt;909 font-family:"Cambria","serif";910 mso-ascii-font-family:Cambria;911 mso-ascii-theme-font:major-latin;912 mso-fareast-font-family:"Times New Roman";913 mso-fareast-theme-font:major-fareast;914 mso-hansi-font-family:Cambria;915 mso-hansi-theme-font:major-latin;916 mso-bidi-font-family:"Times New Roman";917 mso-bidi-theme-font:major-bidi;918 color:#17365D;919 mso-themecolor:text2;920 mso-themeshade:191;921 letter-spacing:.25pt;922 mso-font-kerning:14.0pt;}923 927 span.SpellE 924 928 {mso-style-name:""; 925 929 mso-spl-e:yes;} 930 span.GramE 931 {mso-style-name:""; 932 mso-gram-e:yes;} 926 933 .MsoChpDefault 927 934 {mso-style-type:export-only; … … 1913 1920 mso-style-noshow:yes; 1914 1921 mso-style-priority:99; 1915 mso-style-qformat:yes;1916 1922 mso-style-parent:""; 1917 1923 mso-padding-alt:0in 5.4pt 0in 5.4pt; … … 1925 1931 <link href=gsasIIfav.png rel="SHORTCUT ICON"> 1926 1932 <!--[if gte mso 9]><xml> 1927 <o:shapedefaults v:ext="edit" spidmax=" 3074"/>1933 <o:shapedefaults v:ext="edit" spidmax="1027"/> 1928 1934 </xml><![endif]--><!--[if gte mso 9]><xml> 1929 1935 <o:shapelayout v:ext="edit"> … … 1956 1962 <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/> 1957 1963 <o:lock v:ext="edit" aspectratio="t"/> 1958 </v:shapetype><v:shape id="Picture_x0020_2" o:spid="_x0000_s1028" type="#_x0000_t75" 1959 alt="Description: Description: GSAS-II logo" style='position:absolute; 1960 margin-left:56pt;margin-top:0;width:96pt;height:96pt;z-index:1;visibility:visible; 1961 mso-wrap-style:square;mso-wrap-distance-left:0;mso-wrap-distance-top:0; 1964 </v:shapetype><v:shape id="Picture_x0020_2" o:spid="_x0000_s1026" type="#_x0000_t75" 1965 alt="Description: Description: Description: GSAS-II logo" style='position:absolute; 1966 margin-left:44.8pt;margin-top:0;width:96pt;height:96pt;z-index:251657728; 1967 visibility:visible;mso-wrap-style:square;mso-width-percent:0; 1968 mso-height-percent:0;mso-wrap-distance-left:0;mso-wrap-distance-top:0; 1962 1969 mso-wrap-distance-right:0;mso-wrap-distance-bottom:0; 1963 1970 mso-position-horizontal:right;mso-position-horizontal-relative:text; 1964 mso-position-vertical:absolute;mso-position-vertical-relative:line' 1965 o:allowoverlap="f"> 1971 mso-position-vertical:absolute;mso-position-vertical-relative:line; 1972 mso-width-percent:0;mso-height-percent:0;mso-width-relative:page; 1973 mso-height-relative:page' o:allowoverlap="f"> 1966 1974 <v:imagedata src="gsas2logo.png"/> 1967 1975 <w:wrap type="square" anchory="line"/> 1968 1976 </v:shape><![endif]--><![if !vml]><img width=128 height=128 src=gsas2logo.png 1969 align=right alt="Description: Description: GSAS-II logo" v:shapes="Picture_x0020_2"><![endif]><span1977 align=right alt="Description: Description: Description: GSAS-II logo" v:shapes="Picture_x0020_2"><![endif]><span 1970 1978 style='mso-fareast-font-family:"Times New Roman"'>Help for GSAS-II<o:p></o:p></span></h1> 1971 1979 … … 1984 1992 <h2><strong>GSAS-II tutorials:<o:p></o:p></strong></h2> 1985 1993 1986 <p class=MsoNormal><strong>Starting GSAS-II<o:p></o:p></strong></p> 1994 <p class=MsoNormal><strong><a href="Starting%20GSAS.htm"><span 1995 style='font-weight:normal'>Starting GSAS-II</span></a><o:p></o:p></strong></p> 1987 1996 1988 1997 <p class=MsoNormal><strong><a … … 1997 2006 normal'>Powder pattern peak picking, fitting and indexing</span></a><o:p></o:p></strong></p> 1998 2007 1999 <p class=MsoNormal><strong>Lab X-ray powder pattern <span class=SpellE>Rietveld</span> 2000 refinement (future)<o:p></o:p></strong></p> 2001 2002 <p class=MsoNormal><strong>CW Neutron powder pattern <span class=SpellE>Rietveld</span> 2003 refinement (future)<o:p></o:p></strong></p> 2004 2005 <p class=MsoNormal><strong>Synchrotron X-ray powder pattern <span class=SpellE>Rietveld</span> 2006 refinement (future)<o:p></o:p></strong></p> 2007 2008 <p class=MsoNormal><strong>Crystal structure drawing (balls & sticks, etc.) 2008 <p class=MsoNormal><strong>Lab X-ray powder pattern Rietveld refinement 2009 2009 (future)<o:p></o:p></strong></p> 2010 2011 <p class=MsoNormal><strong>CW Neutron powder pattern Rietveld refinement 2012 (future)<o:p></o:p></strong></p> 2013 2014 <p class=MsoNormal><strong>Synchrotron X-ray powder pattern Rietveld refinement 2015 (future)<o:p></o:p></strong></p> 2016 2017 <p class=MsoNormal><span class=GramE><strong>Crystal structure drawing (balls 2018 & sticks, etc.)</strong></span><strong> (<span class=GramE>future</span>)<o:p></o:p></strong></p> 2010 2019 2011 2020 <p class=MsoNormal><strong>Crystal structure drawing (<span class=SpellE>polyhedra</span>) 2012 2021 (future)<o:p></o:p></strong></p> 2013 2022 2014 <p class=MsoNormal><strong>Distance/Angle/Torsion calculations(future)<o:p></o:p></strong></p>2015 2016 <p class=MsoNormal><strong>Charge flipping structure solution(future)<o:p></o:p></strong></p>2017 2018 <p class=MsoNormal><s trong>etc., etc.<o:p></o:p></strong></p>2023 <p class=MsoNormal><strong>Distance/Angle/Torsion <span class=GramE>calculations(</span>future)<o:p></o:p></strong></p> 2024 2025 <p class=MsoNormal><strong>Charge flipping structure <span class=GramE>solution(</span>future)<o:p></o:p></strong></p> 2026 2027 <p class=MsoNormal><span class=GramE><strong>etc., etc.</strong></span><strong><o:p></o:p></strong></p> 2019 2028 2020 2029 <div class=MsoNormal align=center style='text-align:center'><span … … 2062 2071 style='mso-bidi-font-weight:normal'>Open project…</b> - Open a previously 2063 2072 saved GSAS-II project file (name.gpx). If you currently have a project file 2064 open, you are asked if it is OK to over write it; Cancel will cancel the 2065 process.<b style='mso-bidi-font-weight:normal'>NB</b>: you may open a backup <span2073 open, you are asked if it is OK to over write it; Cancel will cancel the process. 2074 <b style='mso-bidi-font-weight:normal'>NB</b>: you may open a backup <span 2066 2075 class=SpellE>gpx</span> file (e.g. name.bak3.gpx) to recover a previous version 2067 2076 of your project. Remember to <b style='mso-bidi-font-weight:normal'>Save As</b>… … … 2086 2095 style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family:"Times New Roman"'>Save 2087 2096 As…</span></b><span style='mso-fareast-font-family:"Times New Roman"'> - 2088 Save the current project to a new file. A file dialog will be shown to enter the2089 name (and change directory if desired). If the file exists, you will be asked 2090 if it OK to overwrite.</span></p>2097 Save the current project to a new file. A file dialog will be shown to enter 2098 the name (and change directory if desired). If the file exists, you will be 2099 asked if it OK to overwrite.</span></p> 2091 2100 2092 2101 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: … … 2118 2127 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>a.<span 2119 2128 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 2120 style='mso-bidi-font-weight:normal'>Read powder data…</b> - Read in powder 2121 diffraction patterns (multiple patterns can be selected). GSAS-II can read most 2122 of the old GSAS powder format files with the position in <span class=SpellE>centidegrees</span> 2123 2-theta. It can also read “<span class=SpellE>xye</span>” format 2124 files used by <span class=SpellE>topas</span> where the position is in degrees 2125 2-theta. As each file is read, an old GSAS style “instrument parameter 2126 file” is searched for; if not found a <span class=SpellE>CuK</span><span 2127 style='font-family:Symbol'>a</span> laboratory data set is assumed. </p> 2129 style='mso-bidi-font-weight:normal'>Read powder data…</b> - Read in 2130 powder diffraction patterns (multiple patterns can be selected). GSAS-II can 2131 read most of the old GSAS powder format files with the position in <span 2132 class=SpellE>centidegrees</span> 2-theta. It can also read “<span 2133 class=SpellE>xye</span>” format files used by <span class=SpellE>topas</span> 2134 where the position is in degrees 2-theta. As each file is read, an old GSAS 2135 style “instrument parameter file” is searched for; if not found a <span 2136 class=SpellE>CuK</span><span style='font-family:Symbol'>a</span> laboratory 2137 data set is assumed. </p> 2128 2138 2129 2139 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: … … 2228 2238 The total number of refined parameters is also shown at the top of the list. 2229 2239 The value of each parameter is also given. The parameter names are of the form 2230 ‘p :h:name:id’ where ‘p’ is the phase index,2231 ‘h’ is the histogram index and ‘id’ is the item index 2232 (if needed). Indexes all begin with ‘0’ (zero). Note that for atom 2233 positions the value is not a <span class=SpellE>refinable</span> parameter, but 2234 the shift in the value is. Position names are, e.g. ‘0::Ax:0’ for 2235 the x-position of the <span class=SpellE>zeroth</span> atom in the <span 2236 class=SpellE>zeroth</span> phase while shift names have a ‘d’ in 2237 then, e.g. ‘0::dAx:0’. </p>2240 ‘p<span class=GramE>:h:name:id’</span> where ‘p’ is the 2241 phase index, ‘h’ is the histogram index and ‘id’ is the 2242 item index (if needed). Indexes all begin with ‘0’ (zero). Note 2243 that for atom positions the value is not a <span class=SpellE>refinable</span> 2244 parameter, but the shift in the value is. Position names are, e.g. ‘0:<span 2245 class=GramE>:Ax:0’</span> for the x-position of the <span class=SpellE>zeroth</span> 2246 atom in the <span class=SpellE>zeroth</span> phase while shift names have a 2247 ‘d’ in then, e.g. ‘0::dAx:0’. </p> 2238 2248 2239 2249 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: … … 2413 2423 2414 2424 <p class=MsoNormal><span style='mso-fareast-font-family:"Times New Roman"'>Two 2415 of the main refinement tools are the <span class=SpellE> fortran</span> MINPACK <span2416 class=SpellE>lmdif</span> and <span class=SpellE>lmder</span> algorithms 2417 wrapped in python as provided in the <span class=SpellE>Scipy</span> package 2418 and a third one is a python version utilizing only the <span class=SpellE>numpy</span> 2419 package. The purpose is to </span>minimize the sum of the squares of M<span 2420 style='mso-fareast-font-family:"Times New Roman"'> nonlinear functions in N 2421 variables by a modification of the <span class=SpellE>Levenberg</span>-Marquardt2425 of the main refinement tools are the <span class=SpellE><span class=GramE>fortran</span></span> 2426 MINPACK <span class=SpellE>lmdif</span> and <span class=SpellE>lmder</span> 2427 algorithms wrapped in python as provided in the <span class=SpellE>Scipy</span> 2428 package and a third one is a python version utilizing only the <span 2429 class=SpellE>numpy</span> package. The purpose is to </span>minimize the sum of 2430 the squares of M<span style='mso-fareast-font-family:"Times New Roman"'> 2431 nonlinear functions in N variables by a modification of the <span class=SpellE>Levenberg</span>-Marquardt 2422 2432 algorithm. The <span class=SpellE>lmdif</span> and <span class=SpellE>lmder</span> 2423 2433 routines were written by </span>Burton S. <span class=SpellE>Garbow</span>, 2424 Kenneth E. <span class=SpellE>Hillstrom</span>, Jorge J. More (Argonne National 2425 Laboratory, 1980). The python/numpy version was developed by us based on the 2426 material in Numerical Recipes (Press, Flannery, <span class=SpellE>Teulosky</span> 2434 Kenneth E. <span class=SpellE>Hillstrom</span>, <span class=GramE>Jorge</span> 2435 J. <span class=GramE>More (Argonne National Laboratory, 1980).</span> The 2436 python/numpy version was developed by us based on the material in Numerical 2437 Recipes (Press, Flannery, <span class=SpellE><span class=GramE>Teulosky</span></span> 2427 2438 & <span class=SpellE>Vetterling</span>) for the <span class=SpellE>Levenberg</span>-Marquardt 2428 2439 algorithm.<span style='mso-fareast-font-family:"Times New Roman"'><o:p></o:p></span></p> … … 2459 2470 the first cycle of refinement. This value is modified by the least squares 2460 2471 routine. The allowed range is 10<sup>-5</sup> to 100. Smaller values may be 2461 needed if your initial refinement trials immediately diverge, however make sure 2462 your starting parameter values are ‘reasonable’. The selected 2463 default (=1.0) normally gives good performance.<o:p></o:p></span></p> 2472 needed if your initial <span class=GramE>refinement</span> trials immediately 2473 diverge, however make sure your starting parameter values are 2474 ‘reasonable’. The selected default (=1.0) normally gives good 2475 performance.<o:p></o:p></span></p> 2464 2476 2465 2477 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l15 level1 lfo2'><![if !supportLists]><span … … 2501 2513 "Times New Roman"'>m</span><span style='mso-fareast-font-family:"Times New Roman"'>strain 2502 2514 and crystallite size parameters). ‘Histogram constraints’ are those 2503 that depend only on the data set (e.g. profile coefficients U,V,W,X and Y).<o:p></o:p></span></p> 2515 that depend only on the data set (e.g. profile coefficients U<span class=GramE>,V,W,X</span> 2516 and Y).<o:p></o:p></span></p> 2504 2517 2505 2518 <h5><span style='mso-fareast-font-family:"Times New Roman"'>What can I do here?<o:p></o:p></span></h5> … … 2521 2534 auto;text-indent:-.25in;mso-list:l17 level2 lfo3'><![if !supportLists]><span 2522 2535 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>a.<span 2523 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 2524 style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family:"Times New Roman"'>Add 2525 Hold</span></b><span style='mso-fareast-font-family:"Times New Roman"'> – 2526 select a parameter that you wish to remain fixed although other parameters of 2527 the same type may be selected as a group for refinement. For example, if the 2528 space group for a phase has a polar axis (e.g. the b-axis in P2<sub>1</sub>), 2529 then one atom y-parameter is arbitrary and should be selected for a Hold to 2530 keep the structure from drifting up or down the y-axis during refinement. If 2531 selected, a dialog box will appear showing the list of available parameters; 2532 select one and then OK to implement it, Cancel will cancel the operation. The 2533 held parameter will be shown in the constraint window with the keyword 2534 ‘FIXED’. A Delete button can be used to remove it.<o:p></o:p></span></p> 2536 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 2537 class=GramE><b style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family: 2538 "Times New Roman"'>Add</span></b></span><b style='mso-bidi-font-weight:normal'><span 2539 style='mso-fareast-font-family:"Times New Roman"'> Hold</span></b><span 2540 style='mso-fareast-font-family:"Times New Roman"'> – select a parameter 2541 that you wish to remain fixed although other parameters of the same type may be 2542 selected as a group for refinement. For example, if the space group for a phase 2543 has a polar axis (e.g. the b-axis in P2<sub>1</sub>), then one atom y-parameter 2544 is arbitrary and should be selected for a Hold to keep the structure from 2545 drifting up or down the y-axis during refinement. If selected, a dialog box 2546 will appear showing the list of available parameters; select one and then OK to 2547 implement it, Cancel will cancel the operation. The held parameter will be 2548 shown in the constraint window with the keyword ‘FIXED’. A Delete 2549 button can be used to remove it.<o:p></o:p></span></p> 2535 2550 2536 2551 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: … … 2543 2558 with a non-unitary multiplier for some). Examples are a list of atoms with the 2544 2559 same thermal motion <span class=SpellE>Uiso</span>, sets of profile 2545 coefficients U ,V,W across multiple data sets. If selected, a dialog box will2546 appear with a list of the available parameters. Select one and press OK; a 2547 second dialog box will appear with only those parameters that can be made2548 equivalent to the first one. Choose those and press OK. Cancel in either dialog 2549 will cancel the operation. The equivalenced parameters will show as an equation 2550 of the form M<sub>1</sub>*P<sub>1</sub>+M<sub>2</sub>*P<sub>2</sub>=0; usually 2551 M1=1.0 and M2=-1.0, but can be changed via the ‘Edit’ button. The 2552 keyword ‘EQUIV’ marks it as an equivalence. A Delete button can be 2553 used to remove it.<o:p></o:p></span></p>2560 coefficients U<span class=GramE>,V,W</span> across multiple data sets. If 2561 selected, a dialog box will appear with a list of the available parameters. 2562 Select one and press OK; a second dialog box will appear with only those 2563 parameters that can be made equivalent to the first one. Choose those and press 2564 OK. Cancel in either dialog will cancel the operation. The equivalenced 2565 parameters will show as an equation of the form M<sub>1</sub>*P<sub>1</sub>+M<sub>2</sub>*P<sub>2</sub>=0; 2566 usually M1=1.0 and M2=-1.0, but can be changed via the ‘Edit’ 2567 button. The keyword ‘EQUIV’ marks it as <span class=GramE>an 2568 equivalence</span>. A Delete button can be used to remove it.<o:p></o:p></span></p> 2554 2569 2555 2570 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: … … 2567 2582 the operation. The equivalenced parameters will show as an equation of the form 2568 2583 M<sub>1</sub>*P<sub>1</sub>+M<sub>2</sub>*P<sub>2</sub>+…=C; the 2569 multipliers M1, M2, … and C can be changed via the ‘Edit’2570 button. The keyword ‘CONSTR’ marks it as a constraint. A Delete 2571 button can be used to remove it.<o:p></o:p></span></p>2584 multipliers M1, <span class=GramE>M2, …</span> and C can be changed via 2585 the ‘Edit’ button. The keyword ‘CONSTR’ marks it as a 2586 constraint. A Delete button can be used to remove it.<o:p></o:p></span></p> 2572 2587 2573 2588 <p class=MsoListParagraphCxSpLast style='margin-left:1.0in;mso-add-space:auto; … … 2599 2614 <p class=MsoNormal>In this window is tabulated the results of your sequential 2600 2615 refinement. The columns are the parameter names; the naming convention is 2601 ‘p :h:name:n’ where p is the phase number, h is the histogram2602 number, name is the parameter name, and num (if needed) is the item number 2603 (e.g. atom number). The rows are the data sets used in the sequential 2604 refinement.</p>2616 ‘p<span class=GramE>:h:name:n’</span> where p is the phase number, 2617 h is the histogram number, name is the parameter name, and num (if needed) is 2618 the item number (e.g. atom number). The rows are the data sets used in the 2619 sequential refinement.</p> 2605 2620 2606 2621 <h5><span style='mso-fareast-font-family:"Times New Roman"'>What can I do here?<o:p></o:p></span></h5> … … 2706 2721 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 2707 2722 style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family:"Times New Roman"'>Copy</span></b><span 2708 style='mso-fareast-font-family:"Times New Roman"'> – this copies the limits2709 shown to other selected powder patterns. If used, a dialog box (Copy2723 style='mso-fareast-font-family:"Times New Roman"'> – this copies the 2724 limits shown to other selected powder patterns. If used, a dialog box (Copy 2710 2725 Parameters) will appear showing the list of available powder patterns, you can 2711 2726 copy the limits parameters to any or all of them; select ‘All’ to … … 2722 2737 for the background:<o:p></o:p></span></p> 2723 2738 2724 <p class=MsoNormal><span style='mso-fareast-font-family:"Times New Roman"'>1). A2725 continuous empirical function (‘<span class=SpellE>chebyschev</span>’,2726 ‘cosine’, ‘<span class=SpellE> lin</span> interpolate’,2727 ‘inv interpolate’ & ‘log interpolate’). The latter 2728 three select fixed points with spacing that is either equal, inversely equal or 2729 equal on a log scale of the x-coordinate. The set of magnitudes at each point 2730 then comprise the background variables. All are refined when refine is 2731 selected.<o:p></o:p></span></p>2739 <p class=MsoNormal><span style='mso-fareast-font-family:"Times New Roman"'>1). 2740 A continuous empirical function (‘<span class=SpellE>chebyschev</span>’, 2741 ‘cosine’, ‘<span class=SpellE><span class=GramE>lin</span></span> 2742 interpolate’, ‘inv interpolate’ & ‘log 2743 interpolate’). The latter three select fixed points with spacing that is <span 2744 class=GramE>either equal</span>, inversely equal or equal on a log scale of the 2745 x-coordinate. The set of magnitudes at each point then comprise the background 2746 variables. All are refined when refine is selected.<o:p></o:p></span></p> 2732 2747 2733 2748 <p class=MsoNormal style='tab-stops:0in'><span style='mso-fareast-font-family: … … 2774 2789 1'> </span><o:p></o:p></span></p> 2775 2790 2776 <p class=MsoNormal><span style='mso-fareast-font-family:"Times New Roman"'>where 2777 A,R & U are the possible variables and can be individually selected as 2778 desired; Q = 2</span><span style='font-family:Symbol;mso-fareast-font-family: 2779 "Times New Roman"'>p</span><span style='mso-fareast-font-family:"Times New Roman"'>/d.<o:p></o:p></span></p> 2791 <p class=MsoNormal><span class=GramE><span style='mso-fareast-font-family:"Times New Roman"'>where</span></span><span 2792 style='mso-fareast-font-family:"Times New Roman"'> A,R & U are the possible 2793 variables and can be individually selected as desired; Q = 2</span><span 2794 style='font-family:Symbol;mso-fareast-font-family:"Times New Roman"'>p</span><span 2795 style='mso-fareast-font-family:"Times New Roman"'>/d.<o:p></o:p></span></p> 2780 2796 2781 2797 <p class=MsoNormal><span style='mso-fareast-font-family:"Times New Roman"'>3). 2782 2798 A set of individual Bragg peaks using the pseudo-Voigt profile function as 2783 their shapes. Their parameters are ‘pos’, ’<span 2784 class=SpellE>int</span>’, ‘sig’ & ‘<span 2785 class=SpellE>gam</span>’; each can be selected for refinement. The 2786 default values for sig & gam (=0.10) are for very sharp peaks, you may 2787 adjust them accordingly to the kind of peak you are trying to fit before trying 2788 to refine them.<o:p></o:p></span></p> 2799 their shapes. Their parameters are ‘<span class=SpellE>pos</span>’, 2800 ’<span class=SpellE>int</span>’, ‘sig’ & 2801 ‘gam’; each can be selected for refinement. The default values for 2802 sig & gam (=0.10) are for very sharp peaks, you may adjust them accordingly 2803 to the kind of peak you are trying to fit before trying to refine them.<o:p></o:p></span></p> 2789 2804 2790 2805 <h5><span style='mso-fareast-font-family:"Times New Roman"'>What can I do here?<o:p></o:p></span></h5> … … 2814 2829 style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family:"Times New Roman"'>Copy 2815 2830 flags </span></b><span style='mso-fareast-font-family:"Times New Roman"'>– 2816 this copies only the refinement flags shown to other selected powder patterns. 2817 If used, a dialog box (Copy Refinement Flags) will appear showing the list of 2818 available powder patterns, you can copy the refinement flags to any or all of 2819 them; select ‘All’ to copy them to all patterns. Then select 2820 ‘OK’ to do the copy; ‘Cancel’ to cancel the operation.<o:p></o:p></span></p> 2831 <span class=GramE>this copies</span> only the refinement flags shown to other 2832 selected powder patterns. If used, a dialog box (Copy Refinement Flags) will 2833 appear showing the list of available powder patterns, you can copy the 2834 refinement flags to any or all of them; select ‘All’ to copy them 2835 to all patterns. Then select ‘OK’ to do the copy; 2836 ‘Cancel’ to cancel the operation.<o:p></o:p></span></p> 2821 2837 2822 2838 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l19 level1 lfo7'><![if !supportLists]><span … … 2979 2995 profile coefficients. <b style='mso-bidi-font-weight:normal'>NB</b>: In certain 2980 2996 circumstances some choices are ignored e.g. Zero is not refined during peak 2981 fitting. Also some choices may lead to unstable refinement, e.g. Lam refinement2982 and lattice parameter refinement. Examine the ‘</span><a 2983 href="#Covariance"><span style='mso-fareast-font-family:"Times New Roman"'>Covariance’</span></a><span2997 fitting. Also some choices may lead to unstable refinement, e.g. <span 2998 class=GramE>Lam</span> refinement and lattice parameter refinement. Examine the 2999 ‘</span><a href="#Covariance"><span style='mso-fareast-font-family:"Times New Roman"'>Covariance’</span></a><span 2984 3000 style='mso-fareast-font-family:"Times New Roman"'> display for highly 2985 3001 correlated parameters.<o:p></o:p></span></p> … … 2993 3009 fixed. All values can be changed in this window.<o:p></o:p></span></p> 2994 3010 2995 <h5><a name="P owder_Peaks"></a><a name="Peak_List"><span style='mso-bookmark:2996 P owder_Peaks'><span style='mso-fareast-font-family:"Times New Roman"'>What can2997 I do here?</span></span></a><span style='mso-bookmark:Peak_List'><span2998 style='mso-bookmark:P owder_Peaks'><span style='mso-fareast-font-family:"Times New Roman";3011 <h5><a name="Peak_List"></a><a name="Powder_Peaks"><span style='mso-bookmark: 3012 Peak_List'><span style='mso-fareast-font-family:"Times New Roman"'>What can I 3013 do here?</span></span></a><span style='mso-bookmark:Powder_Peaks'><span 3014 style='mso-bookmark:Peak_List'><span style='mso-fareast-font-family:"Times New Roman"; 2999 3015 color:windowtext;font-weight:normal;mso-bidi-font-weight:bold'><o:p></o:p></span></span></span></h5> 3000 3016 3001 3017 <h5 style='margin-left:.5in;text-indent:-.25in;mso-list:l6 level1 lfo11'><span 3002 style='mso-bookmark:P eak_List'><span style='mso-bookmark:Powder_Peaks'><![if !supportLists]><span3018 style='mso-bookmark:Powder_Peaks'><span style='mso-bookmark:Peak_List'><![if !supportLists]><span 3003 3019 style='mso-fareast-font-family:"Times New Roman";color:windowtext;font-weight: 3004 3020 normal;mso-bidi-font-weight:bold'><span style='mso-list:Ignore'>1.<span … … 3006 3022 style='mso-fareast-font-family:"Times New Roman";color:windowtext;font-weight: 3007 3023 normal;mso-bidi-font-weight:bold'>Menu ‘</span></span></span><span 3008 style='mso-bookmark:P eak_List'><span style='mso-bookmark:Powder_Peaks'><span3024 style='mso-bookmark:Powder_Peaks'><span style='mso-bookmark:Peak_List'><span 3009 3025 style='mso-fareast-font-family:"Times New Roman";color:windowtext'>File’</span></span></span><span 3010 style='mso-bookmark:P eak_List'><span style='mso-bookmark:Powder_Peaks'><span3026 style='mso-bookmark:Powder_Peaks'><span style='mso-bookmark:Peak_List'><span 3011 3027 style='mso-fareast-font-family:"Times New Roman";color:windowtext;font-weight: 3012 3028 normal;mso-bidi-font-weight:bold'> – <o:p></o:p></span></span></span></h5> … … 3014 3030 <p class=MsoListParagraphCxSpFirst style='margin-left:1.0in;mso-add-space:auto; 3015 3031 text-indent:-.25in;mso-list:l6 level2 lfo11;tab-stops:list 1.0in'><span 3016 style='mso-bookmark:P eak_List'><span style='mso-bookmark:Powder_Peaks'><![if !supportLists]><span3032 style='mso-bookmark:Powder_Peaks'><span style='mso-bookmark:Peak_List'><![if !supportLists]><span 3017 3033 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>a.<span 3018 3034 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 3019 3035 style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family:"Times New Roman"'>Copy</span></b></span></span><span 3020 style='mso-bookmark:P eak_List'><span style='mso-bookmark:Powder_Peaks'><span3036 style='mso-bookmark:Powder_Peaks'><span style='mso-bookmark:Peak_List'><span 3021 3037 style='mso-fareast-font-family:"Times New Roman"'> – this copies the 3022 3038 sample parameters shown to other selected powder patterns. If used, a dialog … … 3028 3044 <p class=MsoListParagraphCxSpLast style='margin-left:1.0in;mso-add-space:auto; 3029 3045 text-indent:-.25in;mso-list:l6 level2 lfo11;tab-stops:list 1.0in'><span 3030 style='mso-bookmark:P eak_List'><span style='mso-bookmark:Powder_Peaks'><![if !supportLists]><span3046 style='mso-bookmark:Powder_Peaks'><span style='mso-bookmark:Peak_List'><![if !supportLists]><span 3031 3047 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>b.<span 3032 3048 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 3033 3049 style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family:"Times New Roman"'>Copy 3034 flags</span></b></span></span><span style='mso-bookmark:P eak_List'><span3035 style='mso-bookmark:P owder_Peaks'><span style='mso-fareast-font-family:"Times New Roman"'>3050 flags</span></b></span></span><span style='mso-bookmark:Powder_Peaks'><span 3051 style='mso-bookmark:Peak_List'><span style='mso-fareast-font-family:"Times New Roman"'> 3036 3052 - – this copies the sample parameter refinement flags shown to other 3037 3053 selected powder patterns. If used, a dialog box (Copy refinement flags) will … … 3041 3057 ‘Cancel’ to cancel the operation. <o:p></o:p></span></span></span></p> 3042 3058 3043 <h4><span style='mso-bookmark:P eak_List'><span style='mso-bookmark:Powder_Peaks'><span3059 <h4><span style='mso-bookmark:Powder_Peaks'><span style='mso-bookmark:Peak_List'><span 3044 3060 style='mso-fareast-font-family:"Times New Roman"'>Peak List</span></span></span><span 3045 3061 style='mso-fareast-font-family:"Times New Roman"'><o:p></o:p></span></h4> … … 3127 3143 style='mso-fareast-font-family:"Times New Roman";color:windowtext;font-weight: 3128 3144 normal;mso-bidi-font-weight:bold'>– this resets the values of sigma and 3129 gamma to those computed from the instrument parameters U, V, W, X & Y.<o:p></o:p></span></span></h5> 3145 gamma to those computed from the instrument parameters U, V, W, <span 3146 class=GramE>X</span> & Y.<o:p></o:p></span></span></h5> 3130 3147 3131 3148 <h5 style='margin-left:1.0in;text-indent:-.25in;mso-list:l9 level2 lfo12; … … 3257 3274 <p class=MsoNormal>This window </p> 3258 3275 3259 <h4><a name="I_Q"></a><span style='mso-fareast-font-family:"Times New Roman"'>I(Q), 3276 <h4><a name="I_Q"></a><span class=GramE><span style='mso-fareast-font-family: 3277 "Times New Roman"'>I(</span></span><span style='mso-fareast-font-family:"Times New Roman"'>Q), 3260 3278 <a name="S_Q"></a>S(Q), <a name="F_Q"></a>F(Q) & <a name="G_R"></a>G(R)<o:p></o:p></span></h4> 3261 3279 … … 3359 3377 style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family:"Times New Roman"'>Space 3360 3378 group</span></b><span style='mso-fareast-font-family:"Times New Roman"'> 3361 – this should be set when the phase is initialized; it can be changed later.3362 Be careful about the impact on Atom site symmetry and multiplicity if you do. 3363 GSAS-II will recognize any legal space group symbol using the short Hermann-<span 3364 class=SpellE>Mauguin</span> forms; put a space between the axial fields (e.g. 3365 ‘F d 3 m’ not ‘Fd3m’). For space groups with a choice 3366 of origin (e.g. F d 3 m), GSAS-II always uses the 2<sup>nd</sup> setting where 3367 the center of inversion is located at the origin. The choice of space group 3368 will set the available unit cell parameters.<u><o:p></o:p></u></span></p>3379 – this should be set when the phase is initialized; it can be changed 3380 later. Be careful about the impact on Atom site symmetry and multiplicity if 3381 you do. GSAS-II will recognize any legal space group symbol using the short 3382 Hermann-<span class=SpellE>Mauguin</span> forms; put a space between the axial 3383 fields (e.g. ‘F d 3 m’ not ‘Fd3m’). For space groups 3384 with a choice of origin (e.g. F d 3 m), GSAS-II always uses the 2<sup>nd</sup> 3385 setting where the center of inversion is located at the origin. The choice of 3386 space group will set the available unit cell parameters.<u><o:p></o:p></u></span></p> 3369 3387 3370 3388 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: … … 3476 3494 auto;text-indent:-.25in;mso-list:l0 level2 lfo14'><![if !supportLists]><span 3477 3495 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>e.<span 3478 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 3479 style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family:"Times New Roman"'>a, 3480 b, c, alpha, beta, gamma</span></b><span style='mso-fareast-font-family:"Times New Roman"'> 3481 – lattice parameters; only those permitted by the space group are shown. 3482 The volume is computed from the values entered.<u><o:p></o:p></u></span></p> 3496 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 3497 class=GramE><b style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family: 3498 "Times New Roman"'>a</span></b></span><b style='mso-bidi-font-weight:normal'><span 3499 style='mso-fareast-font-family:"Times New Roman"'>, b, c, alpha, beta, gamma</span></b><span 3500 style='mso-fareast-font-family:"Times New Roman"'> – lattice parameters; 3501 only those permitted by the space group are shown. The volume is computed from 3502 the values entered.<u><o:p></o:p></u></span></p> 3483 3503 3484 3504 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l0 level1 lfo14'><![if !supportLists]><span … … 3551 3571 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Atom 3552 3572 Selection from plot: select an atom by a left click of the mouse while holding 3553 down the Shift key and pointed at the center of the displayed atom, it will 3554 turngreen if successful and the corresponding entry in the table will be3573 down the Shift key and pointed at the center of the displayed atom, it will turn 3574 green if successful and the corresponding entry in the table will be 3555 3575 highlighted (in grey); any previous selections will be cleared. To add to .your 3556 3576 selection use the right mouse button (Shift down); if a previously selection is … … 3572 3592 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Double 3573 3593 left click a Style, Label or Color column: a dialog box is shown that allows 3574 you to select a rendering option for all the atoms. For Color a color choice dialog3575 is displayed that covers the entire color spectrum. Choose a color by any of 3576 the means available, press the “Add to Custom Colors”, select that 3577 color in the Custom colors display and then press OK. <b style='mso-bidi-font-weight: 3578 normal'>NB</b>: selecting Color will make all atoms have the same color and for 3579 Style “blank” means the atoms aren’t rendered and thus the 3580 plot will not show any atoms or bonds!</p>3594 you to select a rendering option for all the atoms. For Color a color choice 3595 dialog is displayed that covers the entire color spectrum. Choose a color by 3596 any of the means available, press the “Add to Custom Colors”, 3597 select that color in the Custom colors display and then press OK. <b 3598 style='mso-bidi-font-weight:normal'>NB</b>: selecting Color will make all atoms 3599 have the same color and for Style “blank” means the atoms 3600 aren’t rendered and thus the plot will not show any atoms or bonds!</p> 3581 3601 3582 3602 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l10 level1 lfo15'><![if !supportLists]><span … … 3667 3687 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>j.<span 3668 3688 style='font:7.0pt "Times New Roman"'> 3669 </span></span></span><![endif]><b style='mso-bidi-font-weight:normal'>Delete 3670 atoms</b> – clear the entire draw atom table; it is then refilled from 3671 t he Atoms table. You should do this operation after any changes in the Atoms3672 table, e.g.by a structure refinement.</p>3689 </span></span></span><![endif]><b style='mso-bidi-font-weight:normal'>Delete atoms</b> 3690 – clear the entire draw atom table; it is then refilled from the Atoms 3691 table. You should do this operation after any changes in the Atoms table, e.g. 3692 by a structure refinement.</p> 3673 3693 3674 3694 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l10 level1 lfo15'><![if !supportLists]><span … … 3685 3705 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 3686 3706 style='mso-bidi-font-weight:normal'>Dist. Ang.</b> <b style='mso-bidi-font-weight: 3687 normal'>Tors. </b>– when 2-4 atoms are selected, a distance, angle or 3688 torsion angle will be found for them. The angles are computed for the atoms in 3689 their selection order. The torsion angle is a right hand angle about the A2-A3 3690 vector for the sequence of atoms A1-A2-A3-A4. An estimated standard deviation 3691 is given for the calculated value if a current variance-covariance matrix is 3692 available. The result is shown on the console window; it may be cut & 3693 pasted to another application (e.g. Microsoft Word).</p> 3707 normal'>Tors. </b>– <span class=GramE>when</span> 2-4 atoms are selected, 3708 a distance, angle or torsion angle will be found for them. The angles are 3709 computed for the atoms in their selection order. The torsion angle is a right 3710 hand angle about the A2-A3 vector for the sequence of atoms A1-A2-A3-A4. An 3711 estimated standard deviation is given for the calculated value if a current 3712 variance-covariance matrix is available. The result is shown on the console 3713 window; it may be cut & pasted to another application (e.g. Microsoft 3714 Word).</p> 3694 3715 3695 3716 <p class=MsoListParagraphCxSpLast style='margin-left:1.0in;mso-add-space:auto; … … 3735 3756 set as ‘Pawley <span class=SpellE>dmin</span>’ in the General tab 3736 3757 for this phase. By default the refine flags are not set and the <span 3737 class=SpellE>Fsq</span>(<span class=SpellE>hkl</span>) = 100.0.</p> 3758 class=SpellE><span class=GramE>Fsq</span></span><span class=GramE>(</span><span 3759 class=SpellE>hkl</span>) = 100.0.</p> 3738 3760 3739 3761 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: … … 3742 3764 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 3743 3765 style='mso-bidi-font-weight:normal'>Pawley estimate</b> – this attempts 3744 an estimate of <span class=SpellE>Fsq</span>(<span class=SpellE>hkl</span>) 3745 from the peak heights of the reflection as seen in the 1<sup>st</sup> powder 3746 pattern of those selected in the <a href="#Data">Data</a> tab.</p> 3766 an estimate of <span class=SpellE><span class=GramE>Fsq</span></span><span 3767 class=GramE>(</span><span class=SpellE>hkl</span>) from the peak heights of the 3768 reflection as seen in the 1<sup>st</sup> powder pattern of those selected in 3769 the <a href="#Data">Data</a> tab.</p> 3747 3770 3748 3771 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: … … 3766 3789 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>3.<span 3767 3790 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>You 3768 can change the individual <span class=SpellE>Fsq</span>(<span class=SpellE>hkl</span>) 3769 values by selecting it, typing in the new value and then pressing enter or 3770 selecting somewhere else in the table.</p> 3791 can change the individual <span class=SpellE><span class=GramE>Fsq</span></span><span 3792 class=GramE>(</span><span class=SpellE>hkl</span>) values by selecting it, 3793 typing in the new value and then pressing enter or selecting somewhere else in 3794 the table.</p> 3771 3795 3772 3796 <p class=MsoListParagraphCxSpLast><o:p> </o:p></p> … … 3776 3800 <span style='mso-bookmark:Map_peaks'></span> 3777 3801 3778 <p class=MsoNormal>This gives the list (magnitude, x y & z) of all peaks found3779 within the unit cell from the last Fourier map search sorted in order of 3780 decreasing peak magnitude. The crystal structure plot shows each peak position 3781 as a white3-D cross.</p>3802 <p class=MsoNormal>This gives the list (magnitude, x y & z) of all peaks 3803 found within the unit cell from the last Fourier map search sorted in order of decreasing 3804 peak magnitude. The crystal structure plot shows each peak position as a white 3805 3-D cross.</p> 3782 3806 3783 3807 <h5>What can I do here?</h5> … … 3843 3867 <p class=MsoNormal><span style='mso-fareast-font-family:"Times New Roman"; 3844 3868 mso-no-proof:yes'><img border=0 width=225 height=31 id="_x0000_i1032" 3845 src=graphbar.jpg alt="Description: Description: D:\pyGSAS\help\graphbar.jpg"></span><span 3869 src=graphbar.jpg 3870 alt="Description: Description: Description: D:\pyGSAS\help\graphbar.jpg"></span><span 3846 3871 style='mso-fareast-font-family:"Times New Roman"'><o:p></o:p></span></p> 3847 3872 … … 3894 3919 3895 3920 <p class=MsoNormal><span style='mso-fareast-font-family:"Times New Roman"'>The 3896 powder patterns that are part of your project are shown on this page. They can be 3897 displayed as a stack of powder patterns, just a single pattern or as a contour 3898 image of the peak intensities. What can be done here will depend on which is 3899 displayed and on which item in the GSAS-II data tree you have selected.<o:p></o:p></span></p> 3921 powder patterns that are part of your project are shown on this page. They can 3922 be displayed as a stack of powder patterns, just a single pattern or as a 3923 contour image of the peak intensities. What can be done here will depend on 3924 which is displayed and on which item in the GSAS-II data tree you have 3925 selected.<o:p></o:p></span></p> 3900 3926 3901 3927 <h5><span style='mso-fareast-font-family:"Times New Roman"'>What can I do here?<o:p></o:p></span></h5> … … 3922 3948 auto;text-indent:-.25in;mso-list:l4 level2 lfo22;tab-stops:list 1.0in'><![if !supportLists]><span 3923 3949 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>a.<span 3924 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 3925 style='mso-bidi-font-weight:normal'>l: offset left</b> – for a waterfall 3950 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 3951 class=GramE><b style='mso-bidi-font-weight:normal'>l</b></span><b 3952 style='mso-bidi-font-weight:normal'>: offset left</b> – for a waterfall 3926 3953 plot of multiple powder profiles, increase the offset to the left. Does not 3927 3954 apply if only one pattern.</p> … … 3930 3957 auto;text-indent:-.25in;mso-list:l4 level2 lfo22;tab-stops:list 1.0in'><![if !supportLists]><span 3931 3958 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>b.<span 3932 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 3933 style='mso-bidi-font-weight:normal'>r: offset right</b> - for a waterfall plot 3959 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 3960 class=GramE><b style='mso-bidi-font-weight:normal'>r</b></span><b 3961 style='mso-bidi-font-weight:normal'>: offset right</b> - for a waterfall plot 3934 3962 of multiple powder profiles, increase the offset to the left. Does not apply if 3935 3963 only one pattern.</p> … … 3938 3966 auto;text-indent:-.25in;mso-list:l4 level2 lfo22;tab-stops:list 1.0in'><![if !supportLists]><span 3939 3967 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>c.<span 3940 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 3941 style='mso-bidi-font-weight:normal'>d: offset down</b> - for a waterfall plot 3942 of multiple powder profiles, increase the offset down. Does not apply if only 3943 one pattern.</p> 3968 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 3969 class=GramE><b style='mso-bidi-font-weight:normal'>d</b></span><b 3970 style='mso-bidi-font-weight:normal'>: offset down</b> - for a waterfall plot of 3971 multiple powder profiles, increase the offset down. Does not apply if only one 3972 pattern.</p> 3944 3973 3945 3974 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: 3946 3975 auto;text-indent:-.25in;mso-list:l4 level2 lfo22;tab-stops:list 1.0in'><![if !supportLists]><span 3947 3976 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>d.<span 3948 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 3949 style='mso-bidi-font-weight:normal'>u: offset up</b> - for a waterfall plot of multiple 3950 powder profiles, increase the offset up. Does not apply if only one pattern.</p> 3977 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 3978 class=GramE><b style='mso-bidi-font-weight:normal'>u</b></span><b 3979 style='mso-bidi-font-weight:normal'>: offset up</b> - for a waterfall plot of 3980 multiple powder profiles, increase the offset up. Does not apply if only one 3981 pattern.</p> 3951 3982 3952 3983 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: 3953 3984 auto;text-indent:-.25in;mso-list:l4 level2 lfo22;tab-stops:list 1.0in'><![if !supportLists]><span 3954 3985 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>e.<span 3955 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 3956 style='mso-bidi-font-weight:normal'>o: reset offset</b> - for a waterfall plot 3986 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 3987 class=GramE><b style='mso-bidi-font-weight:normal'>o</b></span><b 3988 style='mso-bidi-font-weight:normal'>: reset offset</b> - for a waterfall plot 3957 3989 of multiple powder profiles, reset to no offset. Does not apply if only one 3958 3990 pattern.</p> … … 3961 3993 auto;text-indent:-.25in;mso-list:l4 level2 lfo22;tab-stops:list 1.0in'><![if !supportLists]><span 3962 3994 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>f.<span 3963 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 3964 style='mso-bidi-font-weight:normal'>n: log(I) on/off</b> – changes the 3995 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 3996 class=GramE><b style='mso-bidi-font-weight:normal'>n</b></span><b 3997 style='mso-bidi-font-weight:normal'>: log(I) on/off</b> – changes the 3965 3998 y-axis to be the log10 of the intensity; difference curve is not shown for 3966 3999 log(I) on.</p> … … 3969 4002 auto;text-indent:-.25in;mso-list:l4 level2 lfo22;tab-stops:list 1.0in'><![if !supportLists]><span 3970 4003 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>g.<span 3971 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 3972 style='mso-bidi-font-weight:normal'>c: contour on/off</b> – if multiple 3973 powder profiles, then a contour plot is shown of the observed intensities. All 3974 data sets must be the same length as the first one to be included in the contour 4004 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 4005 class=GramE><b style='mso-bidi-font-weight:normal'>c</b></span><b 4006 style='mso-bidi-font-weight:normal'>: contour on/off</b> – if multiple powder 4007 profiles, then a contour plot is shown of the observed intensities. All data 4008 sets must be the same length as the first one to be included in the contour 3975 4009 plot.</p> 3976 4010 … … 3988 4022 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>i.<span 3989 4023 style='font:7.0pt "Times New Roman"'> 3990 </span></span></span><![endif]><b style='mso-bidi-font-weight:normal'>s: toggle 3991 single plot</b> – for multiple powder profiles, this will show only the 3992 one selected from the data tree. The offset options are not active.</p> 4024 </span></span></span><![endif]><span class=GramE><b style='mso-bidi-font-weight: 4025 normal'>s</b></span><b style='mso-bidi-font-weight:normal'>: toggle single plot</b> 4026 – for multiple powder profiles, this will show only the one selected from 4027 the data tree. The offset options are not active.</p> 3993 4028 3994 4029 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: … … 3996 4031 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>j.<span 3997 4032 style='font:7.0pt "Times New Roman"'> 3998 </span></span></span><![endif]><b style='mso-bidi-font-weight:normal'>w: toggle 3999 divide by sig</b> – for the pattern selected from the data tree, this 4000 will divide the observed, calculated and difference curves by the <span 4001 class=SpellE>esd</span> for the data points. Other data sets are not shown.</p> 4033 </span></span></span><![endif]><span class=GramE><b style='mso-bidi-font-weight: 4034 normal'>w</b></span><b style='mso-bidi-font-weight:normal'>: toggle divide by 4035 sig</b> – for the pattern selected from the data tree, this will divide 4036 the observed, calculated and difference curves by the <span class=SpellE>esd</span> 4037 for the data points. Other data sets are not shown.</p> 4002 4038 4003 4039 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: … … 4017 4053 auto;text-indent:-.25in;mso-list:l4 level2 lfo22;tab-stops:list 1.0in'><![if !supportLists]><span 4018 4054 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>a.<span 4019 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 4020 style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family:"Times New Roman"'>d: 4021 lower contour max</span></b><span style='mso-fareast-font-family:"Times New Roman"'> 4022 – this lowers the level chosen for the highest contour color.<o:p></o:p></span></p> 4055 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 4056 class=GramE><b style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family: 4057 "Times New Roman"'>d</span></b></span><b style='mso-bidi-font-weight:normal'><span 4058 style='mso-fareast-font-family:"Times New Roman"'>: lower contour max</span></b><span 4059 style='mso-fareast-font-family:"Times New Roman"'> – this lowers the 4060 level chosen for the highest contour color.<o:p></o:p></span></p> 4023 4061 4024 4062 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: … … 4033 4071 auto;text-indent:-.25in;mso-list:l4 level2 lfo22;tab-stops:list 1.0in'><![if !supportLists]><span 4034 4072 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>c.<span 4035 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 4036 style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family:"Times New Roman"'>i: 4037 interpolation method</span></b><span style='mso-fareast-font-family:"Times New Roman"'> 4038 – this changes the method used to represent the contours. If selected a 4039 dialog box appears with all the possible choices. Default is 4040 ‘nearest’; the other useful choice is ‘bilinear’, this 4041 will smooth out the contours. <o:p></o:p></span></p> 4073 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 4074 class=GramE><b style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family: 4075 "Times New Roman"'>i</span></b></span><b style='mso-bidi-font-weight:normal'><span 4076 style='mso-fareast-font-family:"Times New Roman"'>: interpolation method</span></b><span 4077 style='mso-fareast-font-family:"Times New Roman"'> – this changes the 4078 method used to represent the contours. If selected a dialog box appears with 4079 all the possible choices. Default is ‘nearest’; the other useful 4080 choice is ‘bilinear’, this will smooth out the contours. <o:p></o:p></span></p> 4042 4081 4043 4082 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: 4044 4083 auto;text-indent:-.25in;mso-list:l4 level2 lfo22;tab-stops:list 1.0in'><![if !supportLists]><span 4045 4084 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>d.<span 4046 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 4047 style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family:"Times New Roman"'>s: 4048 color scheme</span></b><span style='mso-fareast-font-family:"Times New Roman"'> 4049 – this changes the color scheme for the contouring. Default is 4050 ‘Paired’, black/ white options are ‘Greys’ and 4051 ‘binary’ (for black on white) or ‘gray’ (for white on 4052 black). Others can be very colorful (but not useful)!<o:p></o:p></span></p> 4085 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 4086 class=GramE><b style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family: 4087 "Times New Roman"'>s</span></b></span><b style='mso-bidi-font-weight:normal'><span 4088 style='mso-fareast-font-family:"Times New Roman"'>: color scheme</span></b><span 4089 style='mso-fareast-font-family:"Times New Roman"'> – this changes the 4090 color scheme for the contouring. Default is <span class=GramE>‘Paired’,</span> 4091 black/ white options are ‘Greys’ and ‘binary’ (for 4092 black on white) or ‘gray’ (for white on black). Others can be very 4093 colorful (but not useful)!<o:p></o:p></span></p> 4053 4094 4054 4095 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: 4055 4096 auto;text-indent:-.25in;mso-list:l4 level2 lfo22;tab-stops:list 1.0in'><![if !supportLists]><span 4056 4097 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>e.<span 4057 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><b 4058 style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family:"Times New Roman"'>c: 4059 contour off/on</span></b><span style='mso-fareast-font-family:"Times New Roman"'> 4060 – this turns off contouring and returns to a waterfall plot with any 4061 offsets applied.<o:p></o:p></span></p> 4098 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 4099 class=GramE><b style='mso-bidi-font-weight:normal'><span style='mso-fareast-font-family: 4100 "Times New Roman"'>c</span></b></span><b style='mso-bidi-font-weight:normal'><span 4101 style='mso-fareast-font-family:"Times New Roman"'>: contour off/on</span></b><span 4102 style='mso-fareast-font-family:"Times New Roman"'> – this turns off 4103 contouring and returns to a waterfall plot with any offsets applied.<o:p></o:p></span></p> 4062 4104 4063 4105 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l4 level1 lfo22'><![if !supportLists]><span … … 4104 4146 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Move 4105 4147 the mouse cursor across the plot. If on a diagonal cell, the parameter name, 4106 value and <span class=SpellE>esd</span> is shown both as a tool tip and in the right4107 hand portion of the status bar. If the cursor is off the diagonal, the two 4108 parameter names and their covariance are shown in the tool tip and the status 4109 bar.</p>4148 value and <span class=SpellE>esd</span> is shown both as a tool tip and in the 4149 right hand portion of the status bar. If the cursor is off the diagonal, the 4150 two parameter names and their covariance are shown in the tool tip and the 4151 status bar.</p> 4110 4152 4111 4153 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l7 level1 lfo23'><![if !supportLists]><span … … 4117 4159 <p class=MsoListParagraphCxSpLast style='text-indent:-.25in;mso-list:l7 level1 lfo23'><![if !supportLists]><span 4118 4160 style='mso-fareast-font-family:"Times New Roman"'><span style='mso-list:Ignore'>3.<span 4119 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]> Type4120 ‘s’ – A color scheme selection dialog is shown. Select a 4121 color scheme and press OK, the new color scheme will be plotted. The default is 4122 ‘<span class=SpellE>RdYlGn</span>’.</p>4161 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 4162 class=GramE>Type ‘s’</span> – A color scheme selection dialog 4163 is shown. Select a color scheme and press <span class=GramE>OK,</span> the new 4164 color scheme will be plotted. The default is ‘<span class=SpellE>RdYlGn</span>’.</p> 4123 4165 4124 4166 <h4><a name="Structure_Factors"><span style='mso-fareast-font-family:"Times New Roman"'>Structure … … 4154 4196 style='font-family:Symbol;mso-fareast-font-family:"Times New Roman"'>D</span><span 4155 4197 style='mso-fareast-font-family:"Times New Roman"'>q/q) <span class=SpellE>vs</span> 4156 q(=2</span><span style='font-family:Symbol;mso-fareast-font-family:"Times New Roman"'>p</span><span 4157 style='mso-fareast-font-family:"Times New Roman"'>/d) from the Gaussian and 4158 Lorentzian parts of the profile function. The computed curves are based on the 4159 values of U, V, W, X and Y shown in the Instrument Parameters window in 4160 parentheses. These are the values for the instrument contribution that were set 4161 when the powder pattern was first read in to GSAS-II. If individual peak fitting 4162 has been performed, the values of ‘sig’ & ‘gam’ for 4163 the peaks are plotted as ‘+’; these are computed from the fitted 4164 values of U, V, W, X and Y as well as any sig or gam individually refined.<o:p></o:p></span></p> 4198 <span class=GramE>q(</span>=2</span><span style='font-family:Symbol;mso-fareast-font-family: 4199 "Times New Roman"'>p</span><span style='mso-fareast-font-family:"Times New Roman"'>/d) 4200 from the Gaussian and Lorentzian parts of the profile function. The computed 4201 curves are based on the values of U, V, W, X and Y shown in the Instrument 4202 Parameters window in parentheses. These are the values for the instrument 4203 contribution that were set when the powder pattern was first read in to 4204 GSAS-II. If individual peak fitting has been performed, the values of 4205 ‘sig’ & ‘gam’ for the peaks are plotted as 4206 ‘+’; these are computed from the fitted values of U, V, W, X and Y 4207 as well as any sig or gam individually refined.<o:p></o:p></span></p> 4165 4208 4166 4209 <h4><span style='mso-fareast-font-family:"Times New Roman"'>Texture </span></h4> -
trunk/help/gsasII_files/filelist.xml
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trunk/help/gsasII_files/props011.xml
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