Effect of anomalous absorption of neutrons undergoing Laue diffraction at Bragg angles close to π/2

Autor:	I.A. Kuznetsov, S. Yu. Seminikhin, Vladimir V. Fedorov, E. O. Vezhlev, Vladimir V. Voronin
Rok vydání:	2012
Předmět:	Physics Diffraction Physics and Astronomy (miscellaneous) business.industry Neutron diffraction Attenuation length Physics::Optics Bragg plane Optics X-ray crystallography Diffraction topography Atomic physics Nuclear Experiment business Absorption (electromagnetic radiation) Single crystal
Zdroj:	JETP Letters. 96:1-5
ISSN:	1090-6487 0021-3640
DOI:	10.1134/s0021364012130127
Popis:	A direct experimental observation of the anomalous absorption of neutrons undergoing Laue diffraction in a highly perfect silicon single crystal of size about 200 mm at Bragg angles close to π/2 is reported. It is shown that, in the case of diffraction at the (220) plane, the neutron absorption length may be several meters, which is nearly one order of magnitude longer than the mean absorption length for neutrons of the same wavelength. This circumstance makes it possible to study effects accompanying Laue diffraction at Bragg angles of up to 88° and a crystal size of about 200 mm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8d1d7d2a3aa300f691672b73c408e817 https://doi.org/10.1134/s0021364012130127 Zobrazit plný text záznamu Plný text ve formátu PDF