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

Vasily I. Punegov, Konstantin M. Pavlov, Andrey V. Karpov, Nikolai N. Faleev

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14 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1256-1266
Number of pages11
JournalJournal of Applied Crystallography
Volume50
Issue number5
DOIs
Publication statusPublished - 1 Oct 2017

Keywords

  • instrumental functions
  • reciprocal space maps
  • transversely restricted wavefronts
  • X-ray dynamical diffraction theory

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