Changeset 3040


Ignore:
Timestamp:
Sep 2, 2017 7:51:57 AM (6 years ago)
Author:
vondreele
Message:

updates to current 2frame version

Location:
Tutorials/2DStrain
Files:
20 added
2 deleted
21 edited

Legend:

Unmodified
Added
Removed

  • Tutorials/2DStrain/Strain fitting of 2D data in GSAS-II.htm

    r2814 r3040  
    2525  <o:Author>Von Dreele</o:Author>
    2626  <o:LastAuthor>vondreele</o:LastAuthor>
    27   <o:Revision>16</o:Revision>
    28   <o:TotalTime>762</o:TotalTime>
     27  <o:Revision>23</o:Revision>
     28  <o:TotalTime>2178</o:TotalTime>
    2929  <o:Created>2014-01-13T15:39:00Z</o:Created>
    30   <o:LastSaved>2017-04-27T17:05:00Z</o:LastSaved>
    31   <o:Pages>1</o:Pages>
    32   <o:Words>1234</o:Words>
    33   <o:Characters>7039</o:Characters>
     30  <o:LastSaved>2017-09-02T12:47:00Z</o:LastSaved>
     31  <o:Pages>19</o:Pages>
     32  <o:Words>1430</o:Words>
     33  <o:Characters>8151</o:Characters>
    3434  <o:Company>Argonne National Laboratory</o:Company>
    35   <o:Lines>58</o:Lines>
    36   <o:Paragraphs>16</o:Paragraphs>
    37   <o:CharactersWithSpaces>8257</o:CharactersWithSpaces>
     35  <o:Lines>67</o:Lines>
     36  <o:Paragraphs>19</o:Paragraphs>
     37  <o:CharactersWithSpaces>9562</o:CharactersWithSpaces>
    3838  <o:Version>16.00</o:Version>
    3939 </o:DocumentProperties>
    … …  
    4848<!--[if gte mso 9]><xml>
    4949 <w:WordDocument>
     50  <w:View>Print</w:View>
     51  <w:Zoom>124</w:Zoom>
    5052  <w:SpellingState>Clean</w:SpellingState>
    5153  <w:GrammarState>Clean</w:GrammarState>
    … …  
    13071309<h1>Strain fitting of 2D data in GSAS-II</h1>
    13081310
    1309 <p class=MsoNormal>For this demo, data were collected with a MAR2300 area
     1311<p class=MsoNormal>For this tutorial, data were collected with a MAR2300 area
    13101312detector at APS 1-ID-C with a wavelength 0.12398 Å (100<span style='font-family:
    13111313Symbol'>m</span>m diameter beam) from a 1.5mm square hot rolled steel test specimen;
    … …  
    13781380 <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/>
    13791381 <o:lock v:ext="edit" aspectratio="t"/>
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    1381  height:450pt;visibility:visible;mso-wrap-style:square'>
    1382  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image001.png"
    1383   o:title=""/>
    1384 </v:shape><![endif]--><![if !vml]><img width=699 height=600
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     1386</v:shape><![endif]--><![if !vml]><img width=624 height=535
    13851387src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image001.png"
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     1388v:shapes="Picture_x0020_22"><![endif]><o:p></o:p></span></p>
    13871389
    13881390<p class=MsoNormal><span style='mso-no-proof:yes'>For the image and <o:p></o:p></span></p>
    13891391
    13901392<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1391  id="Picture_x0020_22" o:spid="_x0000_i1044" type="#_x0000_t75" style='width:510.75pt;
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    1393  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image022.png"
    1394   o:title=""/>
    1395 </v:shape><![endif]--><![if !vml]><img width=681 height=585
    1396 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image022.png"
    1397 v:shapes="Picture_x0020_22"><![endif]><o:p></o:p></span></p>
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     1394 height:225.75pt;visibility:visible;mso-wrap-style:square'>
     1395 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image005.png"
     1396  o:title=""/>
     1397</v:shape><![endif]--><![if !vml]><img width=624 height=301
     1398src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image003.png"
     1399v:shapes="Picture_x0020_23"><![endif]><o:p></o:p></span></p>
    13981400
    13991401<p class=MsoNormal><span style='mso-no-proof:yes'>for the controls.<o:p></o:p></span></p>
    … …  
    14021404
    14031405<p class=MsoNormal>This image is a superposition of three diffraction patterns;
    1404 CeO<sub>2</sub> <span class=SpellE>calibrant</span>, ferrite (BCC iron) and
    1405 austenite (FCC iron). Consequently the calibration needs to be done with some
    1406 care; the steps are as follows:</p>
     1406CeO<sub>2</sub> calibrant, ferrite (BCC iron) and austenite (FCC iron).
     1407Consequently the calibration needs to be done with some care; the steps are as
     1408follows:</p>
    14071409
    14081410<p class=MsoNormal>Set the wavelength to <b style='mso-bidi-font-weight:normal'><span
    … …  
    14101412mso-hansi-theme-font:minor-latin'>0.12398</span></b></p>
    14111413
    1412 <p class=MsoNormal>Set the <span class=SpellE>calibrant</span> to <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'>CeO2 SRM674b<o:p></o:p></span></b></p>
     1414<p class=MsoNormal>Set the calibrant to <b style='mso-bidi-font-weight:normal'><span
     1415style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
     1416mso-hansi-theme-font:minor-latin'>CeO2 SRM674b<o:p></o:p></span></b></p>
    14151417
    14161418<p class=MsoNormal>Set <b style='mso-bidi-font-weight:normal'><span
    … …  
    14391441
    14401442<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1441  id="_x0000_i1043" type="#_x0000_t75" style='width:524.25pt;height:450pt;
    1442  visibility:visible;mso-wrap-style:square'>
    1443  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image003.png"
    1444   o:title=""/>
    1445 </v:shape><![endif]--><![if !vml]><img width=699 height=600
    1446 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image003.png"
    1447 v:shapes="_x0000_i1043"><![endif]></span></p>
     1443 id="Picture_x0020_24" o:spid="_x0000_i1044" type="#_x0000_t75" style='width:468pt;
     1444 height:401.25pt;visibility:visible;mso-wrap-style:square'>
     1445 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image021.png"
     1446  o:title=""/>
     1447</v:shape><![endif]--><![if !vml]><img width=624 height=535
     1448src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image006.png"
     1449v:shapes="Picture_x0020_24"><![endif]></span></p>
    14481450
    14491451<p class=MsoNormal>I’ve zoomed in to show that the CeO2 rings are well fitted
    … …  
    14521454
    14531455<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1454  id="_x0000_i1042" type="#_x0000_t75" style='width:510.75pt;height:438.75pt;
    1455  visibility:visible;mso-wrap-style:square'>
    1456  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image023.png"
    1457   o:title=""/>
    1458 </v:shape><![endif]--><![if !vml]><img width=681 height=585
    1459 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image023.png"
    1460 v:shapes="_x0000_i1042"><![endif]></span><span
     1456 id="Picture_x0020_25" o:spid="_x0000_i1043" type="#_x0000_t75" style='width:468pt;
     1457 height:321pt;visibility:visible;mso-wrap-style:square'>
     1458 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image028.png"
     1459  o:title=""/>
     1460</v:shape><![endif]--><![if !vml]><img width=624 height=428
     1461src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image007.png"
     1462v:shapes="Picture_x0020_25"><![endif]></span><span
    14611463style='mso-spacerun:yes'> </span></p>
    14621464
    … …  
    14641466
    14651467<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1466  id="Picture_x0020_24" o:spid="_x0000_i1041" type="#_x0000_t75" style='width:744.75pt;
    1467  height:120pt;visibility:visible;mso-wrap-style:square'>
    1468  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image024.png"
    1469   o:title=""/>
    1470 </v:shape><![endif]--><![if !vml]><img width=993 height=160
    1471 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image024.png"
    1472 v:shapes="Picture_x0020_24"><![endif]></span></p>
    1473 
    1474 <p class=MsoNormal>You should now copy these results to the other image. Use <span
     1468 id="Picture_x0020_5" o:spid="_x0000_i1042" type="#_x0000_t75" style='width:461.25pt;
     1469 height:122.25pt;visibility:visible;mso-wrap-style:square'>
     1470 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image030.png"
     1471  o:title=""/>
     1472</v:shape><![endif]--><![if !vml]><img width=615 height=163
     1473src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image030.png"
     1474v:shapes="Picture_x0020_5"><![endif]></span></p>
     1475
     1476<p class=MsoNormal>You should now copy these results to the other images. Use <span
    14751477class=SpellE><b style='mso-bidi-font-weight:normal'><span style='font-family:
    14761478"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:
    … …  
    14941496first image (001) and the <b style='mso-bidi-font-weight:normal'><span
    14951497style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
    1496 mso-hansi-theme-font:minor-latin'>Stress/Strain</span></b> tree item. An empty plot
    1497 (“Strain”) will appear and the initial Stress/Strain data window</p>
    1498 
    1499 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1500  id="Picture_x0020_27" o:spid="_x0000_i1040" type="#_x0000_t75" style='width:567pt;
    1501  height:91.5pt;visibility:visible;mso-wrap-style:square'>
    1502  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image006.png"
    1503   o:title=""/>
    1504 </v:shape><![endif]--><![if !vml]><img width=756 height=122
    1505 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image006.png"
    1506 v:shapes="Picture_x0020_27"><![endif]></span><span
     1498mso-hansi-theme-font:minor-latin'>Stress/Strain</span></b> tree item. An empty
     1499plot (“Strain”) will appear and the initial Stress/Strain data window</p>
     1500
     1501<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
     1502 id="Picture_x0020_34" o:spid="_x0000_i1041" type="#_x0000_t75" style='width:468pt;
     1503 height:237pt;visibility:visible;mso-wrap-style:square'>
     1504 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image029.png"
     1505  o:title=""/>
     1506</v:shape><![endif]--><![if !vml]><img width=624 height=316
     1507src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image008.png"
     1508v:shapes="Picture_x0020_34"><![endif]></span><span
    15071509style='mso-spacerun:yes'> </span></p>
    15081510
    … …  
    15131515mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>-0.75</span></b>
    15141516since center of the steel sample is that much closer to the detector than the
    1515 CeO<sub>2</sub> <span class=SpellE>calibrant</span>. Then select <b
    1516 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;
    1517 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>2D Powder
    1518 Image</span></b> and follow the instruction to add a ring; press <span
    1519 class=GramE><b style='mso-bidi-font-weight:normal'><span style='font-family:
    1520 "Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:
    1521 minor-latin'>a</span></b> and</span> use the mouse left button to select a
    1522 ring. Do as many as you like but be sure to select some CeO<sub>2</sub> rings
    1523 as well; it is useful to zoom in to help with the selection. You can control
    1524 the image display with the <b style='mso-bidi-font-weight:normal'><span
     1517CeO<sub>2</sub> calibrant. Then select <b style='mso-bidi-font-weight:normal'><span
     1518style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
     1519mso-hansi-theme-font:minor-latin'>2D Powder Image</span></b> and follow the
     1520instruction to add a ring; press <span class=GramE><b style='mso-bidi-font-weight:
     1521normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:
     1522minor-latin;mso-hansi-theme-font:minor-latin'>a</span></b> and</span> use the
     1523mouse left button to select a ring. Do as many as you like but be sure to
     1524select some CeO<sub>2</sub> rings as well; it is useful to zoom in to help with
     1525the selection, but make sure zoom buttons are off for the selection. You can
     1526control the image display with the <b style='mso-bidi-font-weight:normal'><span
    15251527style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
    15261528mso-hansi-theme-font:minor-latin'>Image Controls</span></b>. Each time you pick
    … …  
    15351537
    15361538<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1537  id="Picture_x0020_28" o:spid="_x0000_i1039" type="#_x0000_t75" style='width:524.25pt;
    1538  height:450pt;visibility:visible;mso-wrap-style:square'>
    1539  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image007.png"
    1540   o:title=""/>
    1541 </v:shape><![endif]--><![if !vml]><img width=699 height=600
    1542 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image007.png"
    1543 v:shapes="Picture_x0020_28"><![endif]></span></p>
    1544 
    1545 <p class=MsoNormal>Notice that each ring is plotted in different colors (they may
    1546 be somewhat mixed for the two lines ~2Å! We will fix this next.)</p>
    1547 
    1548 <p class=MsoNormal>The 2D Powder Image shows the picks as well</p>
    1549 
    1550 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1551  id="Picture_x0020_29" o:spid="_x0000_i1038" type="#_x0000_t75" style='width:524.25pt;
    1552  height:450pt;visibility:visible;mso-wrap-style:square'>
    1553  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image008.png"
    1554   o:title=""/>
    1555 </v:shape><![endif]--><![if !vml]><img width=699 height=600
    1556 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image008.png"
    1557 v:shapes="Picture_x0020_29"><![endif]></span></p>
     1539 id="Picture_x0020_35" o:spid="_x0000_i1040" type="#_x0000_t75" style='width:468pt;
     1540 height:401.25pt;visibility:visible;mso-wrap-style:square'>
     1541 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image034.png"
     1542  o:title=""/>
     1543</v:shape><![endif]--><![if !vml]><img width=624 height=535
     1544src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image010.png"
     1545v:shapes="Picture_x0020_35"><![endif]></span></p>
     1546
     1547<p class=MsoNormal>Notice that each ring is plotted in different colors (they
     1548may be somewhat mixed for the two lines ~2Å! We will fix this next). The 2D
     1549Powder Image shows the picks as well</p>
     1550
     1551<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
     1552 id="Picture_x0020_36" o:spid="_x0000_i1039" type="#_x0000_t75" style='width:468pt;
     1553 height:401.25pt;visibility:visible;mso-wrap-style:square'>
     1554 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image038.png"
     1555  o:title=""/>
     1556</v:shape><![endif]--><![if !vml]><img width=624 height=535
     1557src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image011.png"
     1558v:shapes="Picture_x0020_36"><![endif]></span></p>
    15581559
    15591560<p class=MsoNormal>And the rings are listed on the <b style='mso-bidi-font-weight:
    15601561normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:
    1561 minor-latin;mso-hansi-theme-font:minor-latin'>Stress/Strain</span></b> data
    1562 window; a scroll bar allows easy access to all the entries.</p>
    1563 
    1564 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1565  id="Picture_x0020_25" o:spid="_x0000_i1037" type="#_x0000_t75" style='width:619.5pt;
    1566  height:399pt;visibility:visible;mso-wrap-style:square'>
    1567  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image025.png"
    1568   o:title=""/>
    1569 </v:shape><![endif]--><![if !vml]><img width=826 height=532
    1570 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image025.png"
    1571 v:shapes="Picture_x0020_25"><![endif]></span></p>
     1562minor-latin;mso-hansi-theme-font:minor-latin'>Stress/Strain</span></b> data window;
     1563a scroll bar allows easy access to all the entries.</p>
     1564
     1565<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
     1566 id="Picture_x0020_37" o:spid="_x0000_i1038" type="#_x0000_t75" style='width:468pt;
     1567 height:300.75pt;visibility:visible;mso-wrap-style:square'>
     1568 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image042.png"
     1569  o:title=""/>
     1570</v:shape><![endif]--><![if !vml]><img width=624 height=401
     1571src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image012.png"
     1572v:shapes="Picture_x0020_37"><![endif]></span></p>
    15721573
    15731574<p class=MsoNormal>If necessary, we can now fix the mixing of the two 2Å lines;
    … …  
    15761577minor-latin'>Pixel search range</span></b> to <b style='mso-bidi-font-weight:
    15771578normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:
    1578 minor-latin;mso-hansi-theme-font:minor-latin'>5</span></b> for both. Each
    1579 change will cause a refresh of the ring selections; after you are done the <b
     1579minor-latin;mso-hansi-theme-font:minor-latin'>5</span></b> for both. Do <b
    15801580style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;
    1581 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Strain</span></b>
    1582 plot should look like</p>
    1583 
    1584 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1585  id="Picture_x0020_31" o:spid="_x0000_i1036" type="#_x0000_t75" style='width:524.25pt;
    1586  height:450pt;visibility:visible;mso-wrap-style:square'>
    1587  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image010.png"
    1588   o:title=""/>
    1589 </v:shape><![endif]--><![if !vml]><img width=699 height=600
    1590 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image010.png"
    1591 v:shapes="Picture_x0020_31"><![endif]></span></p>
     1581mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:
     1582minor-latin'>Operations/Fit Stress <span class=GramE>Strain.</span></span></b>
     1583After you are done the <b style='mso-bidi-font-weight:normal'><span
     1584style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
     1585mso-hansi-theme-font:minor-latin'>Strain</span></b> plot should look like</p>
     1586
     1587<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
     1588 id="Picture_x0020_38" o:spid="_x0000_i1037" type="#_x0000_t75" style='width:468pt;
     1589 height:401.25pt;visibility:visible;mso-wrap-style:square'>
     1590 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image046.png"
     1591  o:title=""/>
     1592</v:shape><![endif]--><![if !vml]><img width=624 height=535
     1593src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image013.png"
     1594v:shapes="Picture_x0020_38"><![endif]></span></p>
    15921595
    15931596<p class=MsoNormal>We are now ready for the first strain fit; do <b
    … …  
    15971600elements (&#949;<sub>11</sub>, &#949;<sub>12</sub> &amp; &#949;<sub>22</sub>)
    15981601that can be determined from a single 2D diffraction ring. The resulting Strain
    1599 plot now shows curves calculated from the fitted tensor elements; these are very
    1600 nearly straight lines as expected from an unloaded sample.<span
     1602plot now shows curves calculated from the fitted tensor elements; these are
     1603very nearly straight lines as expected from an unloaded sample.<span
    16011604style='mso-spacerun:yes'>  </span>In particular the austenite 111 line (~2.08Å)
    16021605is much flatter than the ferrite 200 line (~2.03Å); this reflects the sample
    … …  
    16051608
    16061609<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1607  id="Picture_x0020_32" o:spid="_x0000_i1035" type="#_x0000_t75" style='width:569.25pt;
    1608  height:432.75pt;visibility:visible;mso-wrap-style:square'>
    1609  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image011.png"
    1610   o:title=""/>
    1611 </v:shape><![endif]--><![if !vml]><img width=759 height=577
    1612 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image011.png"
    1613 v:shapes="Picture_x0020_32"><![endif]></span><span
     1610 id="Picture_x0020_39" o:spid="_x0000_i1036" type="#_x0000_t75" style='width:468pt;
     1611 height:300.75pt;visibility:visible;mso-wrap-style:square'>
     1612 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image048.png"
     1613  o:title=""/>
     1614</v:shape><![endif]--><![if !vml]><img width=624 height=401
     1615src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image014.png"
     1616v:shapes="Picture_x0020_39"><![endif]></span><span
    16141617style='mso-spacerun:yes'> </span></p>
    16151618
    … …  
    16181621mso-hansi-theme-font:minor-latin'>d-zero <span class=SpellE>ave</span></span></b>
    16191622is the average d-spacing around each ring; this can be used as the reference
    1620 d-spacing. Each d-zero value for this no load sample can be set to this value;
    1621 this will suppress any residual stress offset. To update all the d-zero values
    1622 to the calculated ones do <b style='mso-bidi-font-weight:normal'><span
     1623d-spacing. If <b style='mso-bidi-font-weight:normal'><span style='font-family:
     1624"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:
     1625minor-latin;mso-bidi-theme-font:minor-latin'>Poisson <span class=SpellE>ave</span></span></b>
     1626is checked then <b style='mso-bidi-font-weight:normal'><span style='font-family:
     1627"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:
     1628minor-latin;mso-bidi-theme-font:minor-latin'>d-zero <span class=SpellE>ave</span></span></b>
     1629is determined from <span style='mso-spacerun:yes'> </span></p>
     1630
     1631<p class=MsoNormal><o:p>&nbsp;</o:p></p>
     1632
     1633<p class=MsoNormal>If <b style='mso-bidi-font-weight:normal'><span
     1634style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
     1635mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>e<sub>11</sub></span></b>
     1636&lt; <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;
     1637mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:
     1638minor-latin'>e<sub>22</sub></span></b>: <b style='mso-bidi-font-weight:normal'><span
     1639style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
     1640mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>d-zero <span
     1641class=SpellE>ave</span></span></b> <b style='mso-bidi-font-weight:normal'><span
     1642style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
     1643mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>= <span
     1644class=SpellE>d<sub>min</sub></span>-(<span class=SpellE>d<sub>max</sub>-d<sub>min</sub></span>)/4</span></b>;
     1645else: <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;
     1646mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:
     1647minor-latin'>d-zero <span class=SpellE>ave</span> = dmin+3*(<span class=SpellE>dmax-dmin</span>)<o:p></o:p></span></b></p>
     1648
     1649<p class=MsoNormal><b style='mso-bidi-font-weight:normal'><span
     1650style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
     1651mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'><o:p>&nbsp;</o:p></span></b></p>
     1652
     1653<p class=MsoNormal>Where <span class=SpellE><b style='mso-bidi-font-weight:
     1654normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:
     1655minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>d<sub>min</sub><span
     1656class=GramE>,d<sub>max</sub></span></span></b></span><b style='mso-bidi-font-weight:
     1657normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:
     1658minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'> </span></b>are
     1659the minimum and maximum d-<span class=SpellE>spacings</span> for a given
     1660diffraction ring, thus selecting the place where the diffraction ring under
     1661load would give a strain free value.</p>
     1662
     1663<p class=MsoNormal>Each d-zero value for this no load sample can be set to this
     1664value; this will suppress any residual stress offset. To update all the d-zero
     1665values to the calculated ones do <b style='mso-bidi-font-weight:normal'><span
    16231666style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
    16241667mso-hansi-theme-font:minor-latin'>Operations/Update d-zero</span></b> then
    … …  
    16301673style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;
    16311674mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>d-zero <span
    1632 class=SpellE>ave</span></span></b> for all lines. I got for the no load sample</p>
    1633 
    1634 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1635  id="Picture_x0020_33" o:spid="_x0000_i1034" type="#_x0000_t75" style='width:569.25pt;
    1636  height:546pt;visibility:visible;mso-wrap-style:square'>
    1637  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image012.png"
    1638   o:title=""/>
    1639 </v:shape><![endif]--><![if !vml]><img width=759 height=728
    1640 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image012.png"
    1641 v:shapes="Picture_x0020_33"><![endif]></span></p>
    1642 
    1643 <p class=MsoNormal>Finally you want this set of d-zero values to be applied to
    1644 the images from the loaded sample; do <b style='mso-bidi-font-weight:normal'><span
     1675class=SpellE>ave</span></span></b> for all lines so that <b style='mso-bidi-font-weight:
     1676normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:
     1677minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>h-<span
     1678class=SpellE>mustrain</span></span></b> (= <b style='mso-bidi-font-weight:normal'><span
     1679style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
     1680mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>d-zero/d-zero
     1681<span class=SpellE>ave</span></span></b> -1) is small (less than ~±250). I got
     1682for the no load sample</p>
     1683
     1684<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
     1685 id="Picture_x0020_40" o:spid="_x0000_i1035" type="#_x0000_t75" style='width:468pt;
     1686 height:221.25pt;visibility:visible;mso-wrap-style:square'>
     1687 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image050.png"
     1688  o:title=""/>
     1689</v:shape><![endif]--><![if !vml]><img width=624 height=295
     1690src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image015.png"
     1691v:shapes="Picture_x0020_40"><![endif]></span></p>
     1692
     1693<p class=MsoNormal><b style='mso-bidi-font-weight:normal'><span
     1694style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
     1695mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Ivar</span></b>
     1696is the variance in the normalized ring intensity; <span class=GramE>if <span
     1697style='mso-spacerun:yes'> </span>&gt;</span>0 the sample is textured in some
     1698way. Finally you want this set of d-zero values to be applied to the images
     1699from the loaded sample; do <b style='mso-bidi-font-weight:normal'><span
    16451700style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
    16461701mso-hansi-theme-font:minor-latin'>Operations/Copy stress/strain</span></b> to
    … …  
    16511706<p class=MsoNormal>For the result of the sequential fitting to make sense, we
    16521707need to enter the applied load for each image. Unfortunately, this must be done
    1653 by hand here because the load value is not the image header. The loads are:
     1708by hand here because the load value is not in the image header. The loads are:
    16541709001: - 2.17425, 006: 527.917 and 011: 1004.41 all in <span class=SpellE>newtons</span>
    16551710(N). Each needs to be divided by the cross section area (2.25mm<sup>2</sup>) of
    … …  
    16741729
    16751730<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1676  id="Picture_x0020_23" o:spid="_x0000_i1033" type="#_x0000_t75" style='width:569.25pt;
    1677  height:357pt;visibility:visible;mso-wrap-style:square'>
    1678  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image013.png"
    1679   o:title=""/>
    1680 </v:shape><![endif]--><![if !vml]><img width=759 height=476
    1681 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image013.png"
    1682 v:shapes="Picture_x0020_23"><![endif]></span></p>
     1731 id="Picture_x0020_41" o:spid="_x0000_i1034" type="#_x0000_t75" style='width:468pt;
     1732 height:221.25pt;visibility:visible;mso-wrap-style:square'>
     1733 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image052.png"
     1734  o:title=""/>
     1735</v:shape><![endif]--><![if !vml]><img width=624 height=295
     1736src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image016.png"
     1737v:shapes="Picture_x0020_41"><![endif]></span></p>
    16831738
    16841739<p class=MsoNormal>Note that if the beam line software has prepared the
    1685 appropriate file containing this information; it could be loaded via the <b
     1740appropriate file containing this information, it could be loaded via the <b
    16861741style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;
    16871742mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Operations/Load
    … …  
    16971752
    16981753<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1699  id="Picture_x0020_14" o:spid="_x0000_i1032" type="#_x0000_t75" style='width:240pt;
    1700  height:231.75pt;visibility:visible;mso-wrap-style:square'>
    1701  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image014.png"
    1702   o:title=""/>
    1703 </v:shape><![endif]--><![if !vml]><img width=320 height=309
    1704 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image014.png"
     1754 id="Picture_x0020_14" o:spid="_x0000_i1033" type="#_x0000_t75" style='width:204.75pt;
     1755 height:251.25pt;visibility:visible;mso-wrap-style:square'>
     1756 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image024.png"
     1757  o:title=""/>
     1758</v:shape><![endif]--><![if !vml]><img width=273 height=335
     1759src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image024.png"
    17051760v:shapes="Picture_x0020_14"><![endif]></span></p>
    17061761
    1707 <p class=MsoNormal>Do <b style='mso-bidi-font-weight:normal'><span
    1708 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
    1709 mso-hansi-theme-font:minor-latin'>Set All</span></b>; all will show a check
    1710 box. Then do <b style='mso-bidi-font-weight:normal'><span style='font-family:
    1711 "Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:
    1712 minor-latin'>OK</span></b>; the sequential refinement will proceed doing each
    1713 image in turn. The console will show detailed results of the fitting for each
    1714 image with values and <span class=SpellE>esds</span> for each of the tensor
    1715 values.</p>
    1716 
    1717 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1718  id="Picture_x0020_34" o:spid="_x0000_i1031" type="#_x0000_t75" style='width:609.75pt;
    1719  height:314.25pt;visibility:visible;mso-wrap-style:square'>
    1720  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image015.png"
    1721   o:title=""/>
    1722 </v:shape><![endif]--><![if !vml]><img width=813 height=419
    1723 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image015.png"
    1724 v:shapes="Picture_x0020_34"><![endif]></span></p>
    1725 
    1726 <p class=MsoNormal>I only show the bottom of the listing; ignore the ‘no
    1727 phases” messages. The data window shows the results of the sequential fit.</p>
    1728 
    1729 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1730  id="Picture_x0020_36" o:spid="_x0000_i1030" type="#_x0000_t75" style='width:524.25pt;
    1731  height:165pt;visibility:visible;mso-wrap-style:square'>
    1732  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image016.png"
    1733   o:title=""/>
    1734 </v:shape><![endif]--><![if !vml]><img width=699 height=220
    1735 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image016.png"
    1736 v:shapes="Picture_x0020_36"><![endif]></span></p>
     1762<p class=MsoNormal>Press <b style='mso-bidi-font-weight:normal'><span
     1763style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
     1764mso-hansi-theme-font:minor-latin'>Set <span class=GramE>All</span></span></b>, all
     1765boxes will be checked showing selection of the data sets. This also allows you
     1766to instruct the sequential refinement to start at the last data set and proceed
     1767backwards through them (<b style='mso-bidi-font-weight:normal'><span
     1768style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
     1769mso-hansi-theme-font:minor-latin'>Reverse order</span></b>). It also allows you
     1770to instruct the sequential refinement to use the current parameters as starting
     1771values for the next data set. This works in either direction and facilitates
     1772the initial sequential refinements. Select just <b style='mso-bidi-font-weight:
     1773normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:
     1774minor-latin;mso-hansi-theme-font:minor-latin'>Copy to next</span></b> and press
     1775<b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;
     1776mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>OK</span></b>;
     1777the sequential refinement will proceed very rapidly displaying results for each
     1778data set on the console and finally ending by displaying the <b
     1779style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;
     1780mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Sequential strain
     1781fit result.<o:p></o:p></span></b></p>
     1782
     1783<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
     1784 id="Picture_x0020_42" o:spid="_x0000_i1032" type="#_x0000_t75" style='width:371.25pt;
     1785 height:442.5pt;visibility:visible;mso-wrap-style:square'>
     1786 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image054.png"
     1787  o:title=""/>
     1788</v:shape><![endif]--><![if !vml]><img width=495 height=590
     1789src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image054.png"
     1790v:shapes="Picture_x0020_42"><![endif]></span></p>
     1791
     1792<p class=MsoNormal>I only show the bottom of the listing. The data window shows
     1793the results of the sequential fit.</p>
     1794
     1795<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
     1796 id="Picture_x0020_43" o:spid="_x0000_i1031" type="#_x0000_t75" style='width:468pt;
     1797 height:206.25pt;visibility:visible;mso-wrap-style:square'>
     1798 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image055.png"
     1799  o:title=""/>
     1800</v:shape><![endif]--><![if !vml]><img width=624 height=275
     1801src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image017.png"
     1802v:shapes="Picture_x0020_43"><![endif]></span></p>
    17371803
    17381804<p class=MsoNormal>This table is the results of the sequential fit to the three
    1739 images. There are columns for each parameter; if you double click on a column
     1805images. There are columns for each parameter. If you double click on a column
    17401806heading (try a steel e11 or e22 – I selected <b style='mso-bidi-font-weight:
    17411807normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:
    17421808minor-latin;mso-hansi-theme-font:minor-latin'>1<span class=GramE>;e22</span></span></b>
    17431809from my list). The plot shows the variation of this parameter with image
    1744 sequence; press ‘<b style='mso-bidi-font-weight:normal'><span style='font-family:
    1745 "Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:
    1746 minor-latin'>s</span></b>’ and select <b style='mso-bidi-font-weight:normal'><span
    1747 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
    1748 mso-hansi-theme-font:minor-latin'>Sample load</span></b> and the plot will show</p>
    1749 
    1750 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1751  id="Picture_x0020_37" o:spid="_x0000_i1029" type="#_x0000_t75" style='width:524.25pt;
    1752  height:450pt;visibility:visible;mso-wrap-style:square'>
    1753  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image017.png"
    1754   o:title=""/>
    1755 </v:shape><![endif]--><![if !vml]><img width=699 height=600
    1756 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image017.png"
    1757 v:shapes="Picture_x0020_37"><![endif]></span></p>
     1810sequence; <span class=GramE>press ‘<b style='mso-bidi-font-weight:normal'><span
     1811style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
     1812mso-hansi-theme-font:minor-latin'>s</span></b>’</span> and select <b
     1813style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;
     1814mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Sample load</span></b>
     1815and the plot will show (you’ll have to pick something else &amp; then back to <b
     1816style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;
     1817mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:
     1818minor-latin'>1:e22</span></b>).</p>
     1819
     1820<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
     1821 id="Picture_x0020_44" o:spid="_x0000_i1030" type="#_x0000_t75" style='width:468pt;
     1822 height:401.25pt;visibility:visible;mso-wrap-style:square'>
     1823 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image057.png"
     1824  o:title=""/>
     1825</v:shape><![endif]--><![if !vml]><img width=624 height=535
     1826src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image018.png"
     1827v:shapes="Picture_x0020_44"><![endif]></span></p>
    17581828
    17591829<p class=MsoNormal>We can next fit this to a straight line. Select <b
    … …  
    17841854and <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;
    17851855mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Global/Sample
    1786 load</span></b> for <b style='mso-bidi-font-weight:normal'><span
    1787 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
    1788 mso-hansi-theme-font:minor-latin'>x</span></b>. Then press <b style='mso-bidi-font-weight:
     1856load</span></b> (at the bottom of list) for <b style='mso-bidi-font-weight:
    17891857normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:
    1790 minor-latin;mso-hansi-theme-font:minor-latin'>Fit</span></b>. The <b
     1858minor-latin;mso-hansi-theme-font:minor-latin'>x</span></b>. Then press <b
    17911859style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;
     1860mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Fit</span></b>.
     1861The <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;
    17921862mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Expression
    17931863Editor</span></b> window should look like; press <b style='mso-bidi-font-weight:
    … …  
    17971867
    17981868<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1799  id="Picture_x0020_38" o:spid="_x0000_i1028" type="#_x0000_t75" style='width:465pt;
     1869 id="Picture_x0020_45" o:spid="_x0000_i1029" type="#_x0000_t75" style='width:465pt;
    18001870 height:255pt;visibility:visible;mso-wrap-style:square'>
    1801  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image018.png"
     1871 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image059.png"
    18021872  o:title=""/>
    18031873</v:shape><![endif]--><![if !vml]><img width=620 height=340
    1804 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image018.png"
    1805 v:shapes="Picture_x0020_38"><![endif]></span></p>
     1874src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image059.png"
     1875v:shapes="Picture_x0020_45"><![endif]></span></p>
    18061876
    18071877<p class=MsoNormal>And the console shows the parameters with <span
    … …  
    18091879
    18101880<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1811  id="Picture_x0020_39" o:spid="_x0000_i1027" type="#_x0000_t75" style='width:609.75pt;
    1812  height:134.25pt;visibility:visible;mso-wrap-style:square'>
    1813  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image019.png"
    1814   o:title=""/>
    1815 </v:shape><![endif]--><![if !vml]><img width=813 height=179
     1881 id="Picture_x0020_46" o:spid="_x0000_i1028" type="#_x0000_t75" style='width:450.75pt;
     1882 height:128.25pt;visibility:visible;mso-wrap-style:square'>
     1883 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image060.png"
     1884  o:title=""/>
     1885</v:shape><![endif]--><![if !vml]><img width=601 height=171
     1886src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image060.png"
     1887v:shapes="Picture_x0020_46"><![endif]></span></p>
     1888
     1889<p class=MsoNormal>The plot will show the best fit line</p>
     1890
     1891<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
     1892 id="Picture_x0020_27" o:spid="_x0000_i1027" type="#_x0000_t75" style='width:468pt;
     1893 height:401.25pt;visibility:visible;mso-wrap-style:square'>
     1894 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image061.png"
     1895  o:title=""/>
     1896</v:shape><![endif]--><![if !vml]><img width=624 height=535
    18161897src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image019.png"
    1817 v:shapes="Picture_x0020_39"><![endif]></span></p>
    1818 
    1819 <p class=MsoNormal>The plot will show the best fit line</p>
    1820 
    1821 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1822  id="Picture_x0020_40" o:spid="_x0000_i1026" type="#_x0000_t75" style='width:524.25pt;
    1823  height:450pt;visibility:visible;mso-wrap-style:square'>
    1824  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image020.png"
    1825   o:title=""/>
    1826 </v:shape><![endif]--><![if !vml]><img width=699 height=600
    1827 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image020.png"
    1828 v:shapes="Picture_x0020_40"><![endif]></span></p>
     1898v:shapes="Picture_x0020_27"><![endif]></span></p>
    18291899
    18301900<p class=MsoNormal>You can explore other features of this facility; pick more
    1831 than one column (single click on the label) and the <b style='mso-bidi-font-weight:
    1832 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:
    1833 minor-latin;mso-hansi-theme-font:minor-latin'>Selected cols/Plot selected</span></b>
    1834 menu item to plot them together. </p>
     1901than one column (single click on the label) and the <span class=GramE><b
     1902style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;
     1903mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Selected</span></b></span><b
     1904style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif;
     1905mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'> cols/Plot
     1906selected</span></b> menu item to plot them together. </p>
    18351907
    18361908<p class=MsoNormal>To see the effect of stress on one diffraction line, select
    … …  
    18411913
    18421914<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
    1843  id="Picture_x0020_26" o:spid="_x0000_i1025" type="#_x0000_t75" style='width:525pt;
    1844  height:450pt;visibility:visible;mso-wrap-style:square'>
    1845  <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image026.png"
    1846   o:title=""/>
    1847 </v:shape><![endif]--><![if !vml]><img width=700 height=600
    1848 src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image026.png"
    1849 v:shapes="Picture_x0020_26"><![endif]></span></p>
     1915 id="Picture_x0020_28" o:spid="_x0000_i1026" type="#_x0000_t75" style='width:468pt;
     1916 height:401.25pt;visibility:visible;mso-wrap-style:square'>
     1917 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image063.png"
     1918  o:title=""/>
     1919</v:shape><![endif]--><![if !vml]><img width=624 height=535
     1920src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image020.png"
     1921v:shapes="Picture_x0020_28"><![endif]></span></p>
    18501922
    18511923<p class=MsoNormal>The dashed line gives the d-zero position. When you look at
    1852 the other lines, you should notice that the ones at ca. 3.13Å, 1.91Å, and 1.63Å
     1924the other lines, you should notice that the ones at ca. 3.13Å, 1.63Å, and 1.24Å
    18531925remain straight lines; these are from CeO<sub>2</sub> and should be unchanged
    18541926under load.</p>
    18551927
     1928<p class=MsoNormal>Finally we can investigate the appearance of texture in the
     1929ring intensities, do Operations/Plot intensity distribution. A new plot
     1930appears; the ‘u’ key will change the curve offsets to get</p>
     1931
     1932<p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
     1933 id="Picture_x0020_47" o:spid="_x0000_i1025" type="#_x0000_t75" style='width:468pt;
     1934 height:401.25pt;visibility:visible;mso-wrap-style:square'>
     1935 <v:imagedata src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image022.png"
     1936  o:title=""/>
     1937</v:shape><![endif]--><![if !vml]><img width=624 height=535
     1938src="Strain%20fitting%20of%202D%20data%20in%20GSAS-II_files/image023.png"
     1939v:shapes="Picture_x0020_47"><![endif]></span></p>
     1940
    18561941<p class=MsoNormal><o:p>&nbsp;</o:p></p>
     1942
     1943<p class=MsoNormal>The CeO<sub>2</sub> lines are straight (MRD=1.0) while lines
     1944from the two steel phases show the effect of texture but little graininess.</p>
    18571945
    18581946<p class=MsoNormal>Again you could save the project with <b style='mso-bidi-font-weight:
    … …  
    18621950style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
    18631951mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>GSAS-II data
    1864 tree</span></b> menu although it is not needed for any further tutorials. The
    1865 strain results from each image can be exported as a comma delimited set of
    1866 values which can easily be read by Microsoft Excel and other spread sheet
    1867 programs; see <b style='mso-bidi-font-weight:normal'><span style='font-family:
    1868 "Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:
    1869 minor-latin'>Export/Image data as/Strain CSV file</span></b>.</p>
     1952tree</span></b> menu <span class=GramE>although</span> it is not needed for any
     1953further tutorials. The strain results from each image can be exported as a
     1954comma delimited set of values which can easily be read by Microsoft Excel and
     1955other spread sheet programs; see <b style='mso-bidi-font-weight:normal'><span
     1956style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;
     1957mso-hansi-theme-font:minor-latin'>Export/Image data as/Strain CSV file</span></b>.</p>
    18701958
    18711959</div>

  • Tutorials/2DStrain/Strain fitting of 2D data in GSAS-II_files/filelist.xml

    r2814 r3040  
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