Multiple Bragg Reflections Are Not Always Negligible and Spurious

0564992 - ÚJF 2023 RIV US eng J - Článek v odborném periodiku
Mikula, Pavol - Ryukhtin, Vasil - Em, V.
Multiple Bragg Reflections Are Not Always Negligible and Spurious.
Physics of Metals and Metallography. Roč. 123, č. 13 (2022), s. 1354-1360. ISSN 0031-918X. E-ISSN 1555-6190
Grant CEP: GA MŠMT EF16_013/0001812; GA MŠMT EF16_013/0001794
Grant ostatní: AV ČR(CZ) StrategieAV21/23
Program: StrategieAV
Výzkumná infrastruktura: Reactors LVR-15 and LR-0 II - 90120
Institucionální podpora: RVO:61389005
Klíčová slova: neutron diffraction * Bragg diffraction optics * bent perfect crystal * multiple reflections
Obor OECD: Materials engineering
Impakt faktor: 1.2, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1134/S0031918X2110080X

In our contribution we present some important results of an exhaustive neutron diffraction studies of multiple Bragg reflections (MBR) accompanying an allowed as well as forbidden reflections. The MBR-observations were carried out, namely, in the frame of Bragg diffraction optics experiments on cylindrically bent perfect single crystals. It has been found that depending on the thickness and curvature of the crystal slabs and the diffraction geometry (reflection, transmission) many strong multiple reflections can be excited which also could be used as a source of highly monochromatic and highly collimated beams for further high-resolution neutron scattering or radiography experiments.
Trvalý link: https://hdl.handle.net/11104/0340865