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Observation of multiple Bragg reflections accompanying forbidden Si(002) reflection in bent-perfect Si crystal

Published online by Cambridge University Press:  22 February 2021

P. Mikula Open the ORCID record for P. Mikula [Opens in a new window] ,
M. Vrána ,
J. Šaroun  and
V. Ryukhtin
P. Mikula*
Affiliation:
Nuclear Physics Institute of the Czech Academy of Sciences, Husinec – Řež 130, 250 68Řež, Czech Republic
M. Vrána
Affiliation:
Nuclear Physics Institute of the Czech Academy of Sciences, Husinec – Řež 130, 250 68Řež, Czech Republic
J. Šaroun
Affiliation:
Nuclear Physics Institute of the Czech Academy of Sciences, Husinec – Řež 130, 250 68Řež, Czech Republic
V. Ryukhtin
Affiliation:
Nuclear Physics Institute of the Czech Academy of Sciences, Husinec – Řež 130, 250 68Řež, Czech Republic
*
a)Author to whom correspondence should be addressed. Electronic mail: mikula@ujf.cas.cz
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Abstract

Strong multiple Bragg reflections (MBRs) which can be realized in a bent-perfect-crystal (BPC) slab provide a monochromatic beam of excellent resolution parameters. For identifying MBR effects in the BPC Si crystal, we used the method of azimuthal rotation of the crystal lattice around the scattering vector of the primary forbidden Si(200) reflection for a fixed chosen wavelength. In this paper, several azimuthal scans searching strong MBR effects with the intention of a possible practical exploitation for very high-resolution diffractometry are presented.

Keywords

neutron diffractionmultiple reflectionsbent-perfect crystalBragg diffraction optics
Type
Technical Article
Information
Powder Diffraction , Volume 36 , Issue 1 , March 2021 , pp. 14 - 19
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Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press on behalf of International Centre for Diffraction Data

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