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Larson and Robert B. Executable versions of GSAS are distributed more-or-less freely see the friendly message from the Regents of the University of California, below , but the source code is not distributed.
Every GSAS user should take the time to read the "mathematical basis" section! The folks that have written GSAS get very little credit for their massive efforts.
By including a reference to GSAS in your papers, you can help see that the citation index will reflect the importance of their contribution. Von Dreele at vondreele …. Department of Energy. The U. Government is licensed to use, reproduce, and distribute this software. Permission is granted to the public to copy and use this software without charge, provided that this notice and any statement of authorship are reproduced on all copies. Neither the Government nor the University makes any warranty, express or implied, or assumes any liability or responsibility for the use of this software.
Neither any author nor the U. Government makes any warranty, expressed or implied, or assumes any liability or responsibility for the use of this information or the software described here.
Powered by Trac 1. The GSAS package can be used with both single-crystal and powder diffraction data Rietveld analysis , even both simultaneously. Neutron data can be either from single-wavelength instruments, or for those a bit more masochistic, time-of-flight instrumentation.
Up to 99 different sets of data can be modeled using mixtures of up to 9 different phases. Larson and R. Last modified 2 years ago Last modified on Apr 9, AM. Download in other formats: Plain Text. GSAS General Structure Analysis System is a comprehensive system for the refinement of structural models to both x-ray and neutron diffraction data.
GSAS Nickel example using EXPGUI (Intro)
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