Dear sir, Can i know what is the significance of U,V,W separately?what do they signify *if i have a plot of two theta Vs intensity how can one show what U,V,W is separately*? i have researched a lot but they are no particular significant meaning. i only know they depend on the instrument resolution function(IRF) which depends on diffractometer..
Do you have any idea how U,V,W are calculated or refined? I know this formula by caglioti et al(1958) FWHM = (U*tan^2 theta + V*tan theta + W)^0.5 but this doesn't help me knowing the real individual significance like i*n fullprof we can actually vary them individually *and see the changes in the pattern accordingly by varying U,V,W separately
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