UCN Source at an External Beam of Thermal Neutrons
Joint Authors
Lychagin, E. V.
Muzychka, A. Yu.
Nekhaev, G. V.
Sharapov, E. I.
Strelkov, A. V.
Nesvizhevsky, Valery V.
Source
Advances in High Energy Physics
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-03-08
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
We propose a new method for production of ultracold neutrons (UCNs) in superfluid helium.
The principal idea consists in installing a helium UCN source into an external beam of thermal or cold neutrons and in surrounding this source with a solid methane moderator/reflector cooled down to ~4 K.
The moderator plays the role of an external source of cold neutrons needed to produce UCNs.
The flux of accumulated neutrons could exceed the flux of incident neutrons due to their numerous reflections from methane; also the source size could be significantly larger than the incident beam diameter.
We provide preliminary calculations of cooling of neutrons.
These calculations show that such a source being installed at an intense source of thermal or cold neutrons like the ILL or PIK reactor or the ESS spallation source could provide the UCN density 105 cm−3, the production rate 107 UCN/s−1.
Main advantages of such an UCN source include its low radiative and thermal load, relatively low cost, and convenient accessibility for any maintenance.
We have carried out an experiment on cooling of thermal neutrons in a methane cavity.
The data confirm the results of our calculations of the spectrum and flux of neutrons in the methane cavity.
American Psychological Association (APA)
Lychagin, E. V.& Muzychka, A. Yu.& Nekhaev, G. V.& Nesvizhevsky, Valery V.& Sharapov, E. I.& Strelkov, A. V.. 2015. UCN Source at an External Beam of Thermal Neutrons. Advances in High Energy Physics،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1052531
Modern Language Association (MLA)
Lychagin, E. V.…[et al.]. UCN Source at an External Beam of Thermal Neutrons. Advances in High Energy Physics No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1052531
American Medical Association (AMA)
Lychagin, E. V.& Muzychka, A. Yu.& Nekhaev, G. V.& Nesvizhevsky, Valery V.& Sharapov, E. I.& Strelkov, A. V.. UCN Source at an External Beam of Thermal Neutrons. Advances in High Energy Physics. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1052531
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1052531