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DiscussionOnFit2d

Why should you use fit2d?

Maud does include some utility to convert Tiff images directly. However, in the context of high pressure experiments, I prefer to perform a first processing with fit2d before starting a refinement in Maud. Why? Here is the list

• I use Fit2d anyway
  • on the beamline,
  • to have a first look at the data,
  • to calibrate the wavelength, detector distance, detector tilt...
  • and I know it well.
• Not all diffraction images are in Tiff format
• If you really want to use Maud to convert the images
  • you still need to define a beam center, one way or another.
  • you might not be consistent from one image to the next.
• High pressure data tend to be dirty, with a lot of background, huge stresses, and very few peaks. Therefore, I find it easier to start a Rietveld refinement if I corrected some of it already...

Now, I should point out that

• beam center, detector tilt, and detector distance from fit2d will only be used as a starting point.
• detector tilt and detector distance will be recalibrated in Maud, with the standard,
• beam center will be adjusted in Maud for each diffraction image.