engleski

Factors affecting diffraction broadening analysis

The combined truncation and background level error, inherent in diffraction line profile analysis, has been calculated for several bell-shaped functions, which are usually used in the refinement of diffraction pattern. It has been shown that, in the line broadening analysis, the combined error more affects the functions which are usually used to describe the crystallite size parameter than the ones used to describe the strain parameter. The steps and precautions, which are necessary in order to minimize the error, have been proposed through simple examples. The values of the size and strain parameters, obtained from integral breadths derived by the Stokes deconvolution, have been compared with those which have followed from the Warren treatment of broadening.

x-ray diffraction; line broadening; stokes method

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