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1<html>
2<head>
3   <title>EXPGUI Tutorial Intro</title>
4</head>
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15<?
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19<blockquote>
20
21<CENTER>
22<H1>GSAS Nickel example using EXPGUI (Intro)</H1>
23</CENTER>
24<H1>Introduction</H1>
25
26The following pages show how to use EXPGUI to
27perform the same tutorial refinement for Nickel powder,
28presented in the
29<A HREF="https://subversion.xor.aps.anl.gov/EXPGUI/gsas/all/GSAS%20Manual.pdf">
30using EXPGUI instead of EXPEDT, as done in the manual. These web
31pages were created in ~2002 and since then EXPGUI has advanced in many
32ways, so the program may behave slightly differently in places.
33
34<P>
35<I>Note:</I> 
36<blockquote>
37while it is possible to have your working GSAS files
38(for example the .EXP file) in a separate directory from
39the raw data file(s), I discourage this practice as it then
40becomes quite difficult to later copy or move the .EXP
41file from one directory or computer to another.
42For this reason, I suggest copying the data (.RAW) files
43into the directory where you will create the Experiment
44(.EXP) file.
45<P>
46For this example, I am working in directory
47<tt>/home/toby/work</tt>, and the
48data files and parameters files are in directory
49<tt>/home/toby/gsas/example</tt>, so
50I copy the Nickel data and instrument parameter file using UNIX commands:
51<PRE>
52       cp /home/toby/gsas/example/nickel.raw   /home/toby/work/
53       cp /home/toby/gsas/example/inst_tof.prm /home/toby/work/
54</PRE>
55For Windows I would likely copy the files by dragging their icons between
56the appropriate folders.
57</blockquote>
58
59<H2>Tutorial Outline</H2>
60<OL>
61<LI><A HREF="nickel1.html">
62Create a GSAS Experiment File</A>
63<LI><A HREF="nickel2.html">
64Add a phase to the Experiment</A>
65<LI><A HREF="nickel3.html">
66Add data (histograms) to the Experiment</A>
67<LI><A HREF="nickel4.html">
68Change a profile parameter</A>
69<LI><A HREF="nickel5.html">
70Run POWPREF</A>
71<LI><A HREF="nickel6.html">
72Plot data using POWPLOT or LIVEPLOT</A>
73<LI><A HREF="nickel7.html">
74Setup for Least-Squares Refinement</A>
75<LI><A HREF="nickel8.html">
76Run GENLES</A>
77<LI><A HREF="nickel9.html">
78Additional Work</A>
79</OL>
80<UL>
81<LI>
82<A HREF="nickelnotes.html">Other notes (includes RAWPLOT example)</A>
83</UL>
84<P>
85<H2>Sample files</H2>
86Sample .EXP files have been saved at points through the tutorial. These
87are indicated in the tutorial as ".EXP snapshots". These files have been
88reformatted for DOS/Windows, but EXPGUI users will have no trouble
89using them on either platform.
90<UL>
91<LI><A HREF="ftp://ftp.ncnr.nist.gov/pub/cryst/gsas/tutorials/nickel2.exp">
92nickel2.exp</A>
93 -- After adding a phase to the Experiment
94<LI><A HREF="ftp://ftp.ncnr.nist.gov/pub/cryst/gsas/tutorials/nickel3.exp">
95nickel3.exp</A>
96-- After adding data (histograms) to the Experiment
97<LI><A HREF="ftp://ftp.ncnr.nist.gov/pub/cryst/gsas/tutorials/nickel5.exp">
98nickel5.exp</A>
99-- After running POWPREF
100<LI><A HREF="ftp://ftp.ncnr.nist.gov/pub/cryst/gsas/tutorials/nickel7.exp">
101nickel7.exp</A>
102-- After setup for Least-Squares Refinement
103</UL>
104Other sample files:
105<UL>
106<LI><A HREF="ftp://ftp.ncnr.nist.gov/pub/cryst/gsas/tutorials/nickel.raw">
107nickel.raw
108</A> -- data file
109<LI><A HREF="ftp://ftp.ncnr.nist.gov/pub/cryst/gsas/tutorials/inst_tof.prm">
110inst_tof.prm
111</A> -- instrument parameter file
112</UL>
113<H2>Acknowledgements</H2>
114Many thanks to Dr. Egbert Keller of the Kristallographisches Institut of the
115Albert-Ludwigs-Universit&auml;t Freiburg
116for comments on this tutorial.
117<P>
118<A Href="https://subversion.xor.aps.anl.gov/trac/EXPGUI">
119GSAS</A>
120is written by Allen C. Larson and
121Robert B. Von Dreele while at
122Los Alamos National Laboratory.
123or kudos concerning GSAS should be sent to Robert B. Von Dreele at
124<A HREF="MAILTO:vondreele@anl.gov">vondreele@anl.gov</A>
125<P>GSAS is Copyright, 1984-1997, The Regents of the University of California.
126The GSAS software was produced under a U.S. Government contract (W-7405-ENG-36)
127by the Los Alamos National Laboratory, which is operated by the University
128of California for the U.S. Department of Energy. The U.S. Government is
129licensed to use, reproduce, and distribute this software. Permission is
130granted to the public to copy and use this software without charge, provided
131that this notice and any statement of authorship are reproduced on all
132copies. Neither the Government nor the University makes any warranty, express
133or implied, or assumes any liability or responsibility for the use of this
134software.
135<P>EXPGUI was oringinally written by Brian H. Toby when at
136the NIST Center for Neutron Research,
137<A HREF="MAILTO:Brian.Toby@ANL.GOV">Brian.Toby@ANL.GOV</A> 
138with help from Jonathan Wasserman.
139
140<P>EXPGUI is not subject to copyright. Have fun with it.
141
142<p>Neither the U.S. Government nor any author makes any warranty,
143expressed or implied, or assumes any liability or responsibility
144for the use of this information or the software described
145here. Brand names cited here are used for
146identification purposes and do not consitute an endorsement by NIST.
147
148<P>
149<HR>
150</blockquote>
151</body>
152</html>
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