Tkachook L. Dynamical Theory of X-Ray Scattering in Cylindrically Bent Crystals with Microdefects

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0407U001023

Thesis Registration Form

0407U001023.pdf

Applicant for

Specialization

  • 01.04.07 - Фізика твердого тіла

27-02-2007

Specialized Academic Board

Д26.168.02

Essay

The analytical expressions for reflection and transmission coefficients of coherent, ‘quasidiffuse’ and diffuse waves are obtained in the case of cylindrically bent single crystals containing homoge-neously distributed Coulomb-type defects. As shown, the influence of a bend is more appreciable for the negative curvature and the increase of the curvature leads to the broadening of all the com-ponents of the reflection curve. The influence of macroscopic strain on patterns of intensity distribution for diffuse scattering from microdefects of two types (spherically-symmetric clusters and dislocation loops) has been analysed and shown to be more appreciable for defects with smaller radii.

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