Neutron-beam former for the REVERANS reflectometer with a vertical scattering plane

A device that forms a vertically diverging neutron beam is described. The device allows scanning at the angle of incidence of neutrons on a fluid surface in a reflectometer with a vertical scattering plane. Computer simulation of the former is carried out, and the beam characteristics (horizontal an...

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Bibliographic Details
Published inSurface investigation, x-ray, synchrotron and neutron techniques Vol. 11; no. 5; pp. 1000 - 1007
Main Authors Schebetov, A. F., Gordeev, G. P., Lazebnik, I. M., Konik, P. I., Didenko, G. P., Zabenkin, V. N., Axelrod, L. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.09.2017
Springer Nature B.V
Subjects
Beamforming
Chemistry and Materials Science
Collimation
Collimators
Computer simulation
Fluid filters
Incidence angle
Materials Science
Neutron beams
Neutrons
Reflectometers
Scattering
Surfaces and Interfaces
Thin Films
inclined beam
computer simulation
supermirror
neutron filter
neutron reflectometry
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Summary:A device that forms a vertically diverging neutron beam is described. The device allows scanning at the angle of incidence of neutrons on a fluid surface in a reflectometer with a vertical scattering plane. Computer simulation of the former is carried out, and the beam characteristics (horizontal and vertical divergences and the neutron energy spectrum) are obtained. These characteristics are compared with experimental data. Three units are the main advantages of the former: specially fabricated input and output collimators and neutron filters. The reasons for differences in the experimental and simulated data are discussed.
ISSN:1027-4510
1819-7094
DOI:10.1134/S1027451017050378