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# on 2000/06/01 16:07:21, toby did:
correct typos

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1<html>
2<head>
3   <META NAME="Author" CONTENT="Brian H. Toby">
4   <title>EXPGUI Tutorial Intro</title>
5</head>
6<BODY BGCOLOR="#FFFFFF">
7
8<A HREF=http://www.ncnr.nist.gov>
9<IMG SRC="http://www.ncnr.nist.gov/images/ncnrtrans.gif" 
10alt="Link to NIST Center for Neutron Research home page"
11ALIGN=RIGHT></A>
12<A HREF=http://www.nist.gov>
13<IMG SRC="http://www.ncnr.nist.gov/images/webidblue_2lineright.gif" 
14alt="Link to National Institute of Standards & Technology home page"
15ALIGN=LEFT></A>
16<CENTER>
17<A Href="http://www.ncnr.nist.gov/programs/crystallography/software/tclpkgs.html">
18<IMG SRC="tcltklogo100.gif" 
19alt="Link to Tcl/Tk information">
20</CENTER></A>
21<hr>
22
23<CENTER>
24<H1>EXPGUI Tutorial: Garnet (Intro)</H1>
25</CENTER>
26<H1>Introduction</H1>
27
28The following pages show how to use EXPGUI to
29perform the same tutorial refinement for Yttrium Iron Garnet powder,
30presented in the
31<A HREF="http://www.nist.gov/cgi-bin/exit_nist.cgi?url=ftp://ftp.lanl.gov/public/gsas/manual/manual.pdf">
32GSAS manual</A> (pages 65-81 in the 9/1/94 edition) but
33using EXPGUI instead of EXPEDT, as done in the manual.
34
35<P>
36<I>Note:</I> 
37<blockquote>
38while it is possible to have your working GSAS files
39(for example the .EXP file) in a separate directory from
40the raw data file(s), I discourage this practice as it then
41becomes quite difficult to later copy or move the .EXP
42file from one directory or computer to another.
43For this reason, I suggest copying the data (.RAW) files
44into the directory where you will create the Experiment
45(.EXP) file.
46<P>
47For this example, I am working in directory
48<tt>/home/toby/work</tt>, and the
49data files and parameters files are in directory
50<tt>/home/toby/gsas/example</tt>, so
51I copy the Garnet data and instrument parameter file using UNIX commands:
52<PRE>
53       cp /home/toby/gsas/example/garnet.raw   /home/toby/work/
54       cp /home/toby/gsas/example/inst_d1a.prm /home/toby/work/
55</PRE>
56For Windows I would likely copy the files by dragging their icons between
57the appropriate folders.
58</blockquote>
59
60<H2>Tutorial Outline</H2>
61<OL>
62<LI><A HREF="garnet1.html">
63Creating a GSAS Experiment File</A>
64<LI><A HREF="garnet2.html">
65Add a phase and atoms to the Experiment</A>
66<LI><A HREF="garnet3.html">
67Add data (histogram) to the Experiment</A>
68<LI><A HREF="garnet4.html">
69Run POWPREF and GENLES</A>
70<LI><A HREF="garnet5.html">
71Plot data using POWPLOT or LIVEPLOT</A>
72<LI><A HREF="garnet6.html">
73Additional Least-Squares Refinement</A>
74<LI><A HREF="garnet7.html">
75Define constraints</A>
76<LI><A HREF="garnet8.html">
77Vary atomic parameters</A>
78<LI><A HREF="garnet9.html">
79Compute Bond Distances and Angles</A>
80</OL>
81<UL>
82<LI>
83<A HREF="../tutorial1/nickelnotes.html">Other notes (includes RAWPLOT example)</A>
84</UL>
85<P>
86<H2>Sample files</H2>
87Sample .EXP files have been saved at points through the tutorial. These
88are indicated in the tutorial as ".EXP snapshots". These files have been
89reformatted for DOS/Windows, but EXPGUI users will have no trouble
90using them on either platform.
91<UL>
92<LI><A HREF="ftp://ftp.ncnr.nist.gov/pub/cryst/gsas/tutorials/garnet2.exp">
93garnet2.exp</A>
94 -- After adding a phase and atoms to the Experiment
95<LI><A HREF="ftp://ftp.ncnr.nist.gov/pub/cryst/gsas/tutorials/garnet3.exp">
96garnet3.exp</A>
97-- After adding data (histograms) to the Experiment
98<LI><A HREF="ftp://ftp.ncnr.nist.gov/pub/cryst/gsas/tutorials/garnet4.exp">
99garnet4.exp</A>
100-- After initial GENLES
101<LI><A HREF="ftp://ftp.ncnr.nist.gov/pub/cryst/gsas/tutorials/garnet6.exp">
102garnet6.exp</A>
103-- After fitting cell and zero point
104<LI><A HREF="ftp://ftp.ncnr.nist.gov/pub/cryst/gsas/tutorials/garnet7.exp">
105garnet7.exp</A>
106-- After defining constraints
107<LI><A HREF="ftp://ftp.ncnr.nist.gov/pub/cryst/gsas/tutorials/garnet8.exp">
108garnet8.exp</A>
109-- After final refinement
110</UL>
111Other sample files:
112<UL>
113<LI><A HREF="ftp://ftp.ncnr.nist.gov/pub/cryst/gsas/tutorials/garnet.raw">
114garnet.raw
115</A> -- data file
116<LI><A HREF="ftp://ftp.ncnr.nist.gov/pub/cryst/gsas/tutorials/inst_d1a.prm">
117inst_d1a.prm
118</A> -- instrument parameter file
119</UL>
120
121<P>
122<BR clear=left>
123<HR><p><a href="http://www.ncnr.nist.gov/staff/toby/">Brian Toby</a> (<a href="mailto:brian.toby@nist.gov">Brian.Toby@NIST.GOV</a>)
124<BR clear=left>
125$Revision: 194 $ $Date: 2009-12-04 23:01:58 +0000 (Fri, 04 Dec 2009) $
126</body>
127</html>
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