An interactive Windows program for profile fitting and size/strain analysis

WINFIT is a public domain program for X-ray line profile analysis that gives the user full control over the refinement procedure. Crystallite size and strain analysis is performed using a variety of methods, including Fourier analysis, enabling comparison of the results obtained by different methods. Instead of using a single profile shape function to match a line profile, it can be modelled by a cluster of peaks. The advantage is that no a priori effect on the size distribution calculated by Fourier methods exist and also multimodal distributions can be analysed. The later would not be detected if a single PSFs is used.