CALCULATION OF MOSAIC SIZE AND MICRODISTORTION WITH AID OF INVARIABLE PARAMETER K~* IN INTEGRAL BREADTH METHOD

The difficulties of the conventional method of resolution of the physical broadening into broadening components m and n caused by the mosaic size and lattice microdistortion respectively have been discussed. With the aid of an invariable parameter K~*, the invariability of M and N related to parameters r and s respectively was found as function of K~*, thus, the invariable parameter method for calculating the mosaic size and microdistortion was proposed. This method may be not only simplified the calculation by the conventional Rezak method but also overcome the complexity of not yet solved Cauchy square and other five methods. The diagram and formula of M_1 and N_1 given as a function of K~* would ease tc resolve the physical broadening into m and n. It seems to be quite available for on-line or off-line calculation.