Premium
Dynamical effects in the integrated X‐ray scattering intensity from imperfect crystals in Bragg diffraction geometry. II. Dynamical theory
Author(s) -
Molodkin V. B.,
Olikhovskii S. I.,
Dmitriev S. V.,
Lizunov V. V.
Publication year - 2021
Publication title -
acta crystallographica section a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.742
H-Index - 83
ISSN - 2053-2733
DOI - 10.1107/s2053273321005775
Subject(s) - reciprocal lattice , dynamical theory of diffraction , bragg's law , diffraction , scattering , optics , reflection (computer programming) , diffraction topography , x ray , physics , intensity (physics) , x ray crystallography , geometry , extinction (optical mineralogy) , materials science , condensed matter physics , acousto optics , mathematics , diffraction grating , computer science , programming language
The analytical expressions for coherent and diffuse components of the integrated reflection coefficient are considered in the case of Bragg diffraction geometry for single crystals containing randomly distributed microdefects. These expressions are analyzed numerically for the cases when the instrumental integration of the diffracted X‐ray intensity is performed on one, two or three dimensions in the reciprocal‐lattice space. The influence of dynamical effects, i.e. primary extinction and anomalously weak and strong absorption, on the integrated intensities of X‐ray scattering is investigated in relation to the crystal structure imperfections.