Estimation of the ultracold neutron production by a source designed for the WWR-M reactor

The results of calculations related to designing an ultracold neutron source with superfluid helium for the WWR-M reactor have been presented. The ultracold neutron production rate has been estimated for different types of premoderator chamber filling. The dependence of this rate on the temperature...

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Bibliographic Details
Published in:Technical physics 2017-04, Vol.62 (4), p.633-637
Main Authors: Onegin, M. S., Serebrov, A. P., Fomin, A. K., Lyamkin, V. A.
Format: Article
Language:English
Subjects:
Classical and Continuum Physics
Experimental Instruments and Technique
Fluids
Helium
Neutrons
Physics
Physics and Astronomy
Superfluidity
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Summary:The results of calculations related to designing an ultracold neutron source with superfluid helium for the WWR-M reactor have been presented. The ultracold neutron production rate has been estimated for different types of premoderator chamber filling. The dependence of this rate on the temperature of helium has been determined. If the premoderator chamber is filled with liquid orthodeuterium, the ultracold neutron production rate remains almost constant in the range of helium temperatures of 1.0–1.5 K and is as high as 3.1 × 10 3 cm –3 s –1 .
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784217040193