UCN source with superfluid helium at WWR-M reactor

The WWR-M reactor at PNPI is going to be equipped with an ultracold neutron source of high density. Method of UCN production is based on their accumulation in the super fluid helium due to particular qualities of that quantum liquid. The satisfying storage time of UCN at WWR-M reactor in the super f...

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Bibliographic Details
Published in:Journal of physics. Conference series 2017-01, Vol.798 (1), p.12147
Main Authors: Serebrov, A P, Lyamkin, V A, Fomin, A K, Prudnikov, D V, Samodurov, O Yu, Kanin, A S
Format: Article
Language:English
Subjects:
CP violation
Density
Dipole moments
Electric dipoles
Fluids
Helium
Liquid helium
Neutrons
Nuclear research and test reactors
Physics
Superfluidity
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Summary:The WWR-M reactor at PNPI is going to be equipped with an ultracold neutron source of high density. Method of UCN production is based on their accumulation in the super fluid helium due to particular qualities of that quantum liquid. The satisfying storage time of UCN at WWR-M reactor in the super fluid helium exists at a temperature below 1.2 K. Our source aims at obtaining a density of UCN equals to 104 n/cm3, two orders of magnitude exceeding that in existing sources presently available in the world. Increase in the density of UCN will raise the accuracy of the measurement of the neutron electric dipole moment (EDM) of an order of magnitude, which is fundamentally important for the problem of CP violation. The most intense sources of UCN allows PNPI become the centre of fundamental researches with ultracold neutrons.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/798/1/012147