Synchrotron powder diffraction is performed on a beam line at most of the world’s synchrotron facilities. The common use and propagation of user programs means that many of the world’s materials scientists now have access to these facilities. The PDF-4 databases are designed to analyze data from synchrotron sources. A major part of the analysis effort has been the characterization of instrument functions due to the wide variety of hardware used at world facilities. The publication, “Typical values of the Rietveld instrument profile coefficient” describes a review of instrument functions and was used to simulate functions in the PDF-4 databases.

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Typical values of Rietveld instrument profile coefficients - James A. Kaduk and Joel Reid