Abstract
The possibilities of the X-ray triple-crystal diffractometry (TCD) method in studying the tails of rocking curves of both a perfect crystal and a crystal with a disturbed surface layer are shown. It was found that at large deviation angles (α) from the Bragg condition the pseudopeak of the TCD curves significantly exceeds the main peak. The thermal diffuse scattering in the monochromator crystal is discussed as one of the reasons for this effect. This phenomenon is also responsible for the violation of the I(α) ∝ l/α2 dependence in double-crystal diffractometry (DCD). By measuring the intensities of the main peaks of TCD curves, it is possible to separate the diffuse and the coherent scattering components in the rocking curves obtained by DCD.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Acta Crystallographica Section A Foundations of Crystallography
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
