Applications of dynamical theory of X-ray diffraction by perfect crystals to reciprocal space mapping

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Journal Article
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Publisher
International Union of Crystallography 5 Abbey Square, Chester, Cheshire CH1 2HU, England
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Date
2017
Authors
Punegov VI
Pavlov KM
Karpov AV
Faleev NN
Abstract

© 2017 International Union of Crystallography. The classical dynamical theory of X-ray diffraction is expanded to the special case of transversely restricted wavefronts of the incident and reflected waves. This approach allows one to simulate the two-dimensional coherently scattered intensity distribution centred around a particular reciprocal lattice vector in the so-called triple-crystal diffraction scheme. The effect of the diffractometer's instrumental function on X-ray diffraction data was studied.The dynamical theory of X-ray diffraction has been developed for spatially restricted beams. This approach allows one to calculate rocking curves as well as reciprocal space maps for both transmitted and reflected coherent wavefields.

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Keywords
X-ray dynamical diffraction theory, reciprocal space maps, transversely restricted wavefronts, instrumental functions
Ngā upoko tukutuku/Māori subject headings
ANZSRC fields of research
Fields of Research::34 - Chemical sciences::3401 - Analytical chemistry::340101 - Analytical spectrometry
Fields of Research::51 - Physical sciences::5103 - Classical physics::510302 - Classical and physical optics
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