Dear Rietveld Experts and Colleagues, For most of the rietveld refinements (both qualitative and quantitative_Launch .INP mode) of XRD powder data,I often use Topas Academic Macro Library, well manged and maintained by John Evans and colleagues.https://community.dur.ac.uk/john.evans/topas_academic/topas_macros.htm But currently for samples, that encounter preferred orientation (e.g. nanotubes etc), the strong preferred orientation somehow influence the intensity distribution within a profile and hamper structural solution efforts using rietveld refinement of powder data.Are there any macros (written by experts) that can assist in such a case.I already tried the " Stephens peak shape broadening macro" but found no change in Rwp value.Also, If there is complete data bank of such macro..s. Please share. Accept my apologies for being ignorant, so far. Best regards, Naveed_________________Dr. Naveed Zafar Alihttps://scholar.google.com/citations?sortby=pubdate&hl=en&user=V4Hsus8AAAAJ&view_op=list_works "Being ignorant is not so much a shame, as being unwilling to learn." .....― Benjamin Franklin
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