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Create Ikeda Carpenter Parameters¶

Example of how a parameter can be determined on a beamline ¶

The steps involved in creating instrument specific parameters for the Ikeda-Carpenter-Pseudo-Voigt peak shape function are on ISIS/GEM approximately as follows:

Run calibration samples: NIST standard Silicon and Y2O3.
Combined rietveld refined of these two standards in either Fullprof or GSAS
All structural parameters are fixed but not the Ikeda Carpenter parameters and background parameters (and zero shifts). On GEM, the Ikeda-Carpenter parameters are the same for all banks but the Pseudo-Voigt sigma and gamma parameters which are refined differently for the different banks.
Finally the information from this refinement is copied and pasted from output files to generate either a Fullprof or GSAS instrument parameter files.

Category: Techniques

Create Ikeda Carpenter Parameters¶

Example of how a parameter can be determined on a beamline¶

Example of how a parameter can be determined on a beamline ¶