V. V. Voronin, Yu. A. Berdnikov, A. Ya. Berdnikov, Yu. V. Borisov, Ya. P. Braginetz, I. A. Kuznetsov, M. V. Lasitsa, S. Yu. Semenikhin, V. V. Fedorov, M. L. Khorina, “Two-crystal focusing effect”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2015, Volume 102, Issue 7,Pages <nobr>471–474</nobr>

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JOURNALS // Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki // Archive

Pis'ma v Zh. Èksper. Teoret. Fiz., 2015 Volume 102, Issue 7, Pages 471–474 (Mi jetpl4744)

This article is cited in 3 papers

FIELDS, PARTICLES, AND NUCLEI

Two-crystal focusing effect

V. V. Voronin^abc, Yu. A. Berdnikov^b, A. Ya. Berdnikov^b, Yu. V. Borisov^c, Ya. P. Braginetz^bc, I. A. Kuznetsov^c, M. V. Lasitsa^cb, S. Yu. Semenikhin^c, V. V. Fedorov^cba, M. L. Khorina^cb

^a St. Petersburg State University, Universitetskaya nab. 7/9, St. Petersburg, 199034, Russia
^b Petersburg Nuclear Physics Institute, National Research Centre Kurchatov Institute, Gatchina, Leningrad region, 188300, Russia
^c Petersburg Nuclear Physics Institute, National Research Centre Kurchatov Institute, Gatchina, Leningrad region, 188300, Russia

Abstract: The effect of two-crystal focusing of neutrons at Laue diffraction from large perfect silicon crystals has been studied. It has been shown that the focusing effect makes it possible to reach an angular resolution better than 0.03$''$, which is about 0.01 of the width of a Bragg reflection. This circumstance allows a new ultraprecision neutron-spectrometry method based on the method of spin-echo small-angle neutron scattering in combination with Laue diffraction.

Received: 14.08.2015

DOI: 10.7868/S0370274X15190030

English version: Journal of Experimental and Theoretical Physics Letters, 2015, 102:7, 417–420

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