Investigation of multiple Bragg reflections and their possible exploitation

Article type: Research Article

Authors: Mikula, Pavol^{; *} | Šaroun, Jan | Strunz, Pavel | Ryukhtin, Vasyl

Affiliations: Nuclear Physics Institute CAS, 250 68 Řež, Czech Republic. E-mails: mikula@ujf.cas.cz, saroun@ujf.cas.cz, strunz@ujf.cas.cz, ryukhtin@ujf.cas.cz

Correspondence: [*] Corresponding author. E-mail: mikula@ujf.cas.cz.

Abstract: This paper summarizes recent results of an exhaustive experimental study of multiple Bragg reflections accompanying allowed as well as forbidden reflections. The multiple reflection observations were carried out 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 can also be used as a source of highly monochromatic and highly collimated beams for further experiments requiring extremely high resolution.

Keywords: Neutron diffraction, Bragg diffraction optics, bent perfect crystal, multiple reflections

DOI: 10.3233/JNR-200185

Journal: Journal of Neutron Research, vol. 23, no. 1, pp. 29-51, 2021