dear all, I am doing the size-strain analysis on the XRD whole pattern profile from zircaloy sample using bruker axs diffractometer with Lynx-Eye detector. The XRD profile we got is very good with a maximum of 78000 counts on the main peak(101 plain). the profiel fits well in gsas. but problem occurs when we are going to fit with LS1 to retrieve the size strain information. Is the big number of count on the main peak giving problem to fit a data by LS1? comments and suggestions are cordially requested from the members... thanking you all prasun