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====== Topas ======

\\
Topas is a powerful suite of software written by Alan Coelho for the analysis of powder diffraction data. Bruker ([[http://www.bruker-axs.de/]]) market the original version of topas which comes with a full graphical user interface. An academic-only version is also available from Alan Coelho ([[http://www.topas-academic.net/]]).

\\
Topas allows you to:


         * analyse constant wavelength and energy dispersive X-ray data 
         * analyse constant wavelength and time of flight neutron data
         * perform Rietveld/Pawley/individual reflection fitting
         * index powder diffraction data
         * solve structures by simulated annealing and charge flipping
         * perform isodisplace distortion mode refinements
         * etc
\\
You can find lots more information about topas on various web sites.  Try:

\\
John Evans' site: [[http://www.dur.ac.uk/john.evans/topas_academic/topas_main.htm]]
\\
Alan Coelho's site: [[http://www.topas-academic.net/]]
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Bruker's site: [[http://www.bruker-axs.de/topas.html]]