X-ray diagnostics of structurally inhomogeneous single crystals

An analysis for the anomalous transmission integral intensities of X-rays (that considers the rations' and half-sums for Friedel's pairs of reflections) along sample co-ordinates in crystals with combined deformation fields determined by the inhomogeneous distribution of defects is carried out. If is shown that using the quasi-linear approach for the dependence of integral intensities on the parameter of the effective deformation allows to separate the influence of different kinds of crystal distortions (i.e. localized and distributed deformation fields) on X-rays' diffraction parameters and to determine the dislocation density, the relative level, and sign of the elastic distortion (i.e. the lattice curvature) along selected crystallographic directions within the single-crystal's slab.