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This article is cited in 1 scientific paper (total in 1 paper)
MULTIDISCIPLINARY
On the possibility of a significant increase in the storage time of ultracold neutrons in traps coated with a liquid helium film
P. D. Grigor'evab, A. M. Dyugaevb, T. I. Mogilyukc, A. D. Grigor'ev a National University of Science and Technology «MISIS», Moscow
b L.D. Landau Institute for Theoretical Physics of Russian Academy of Sciences
c National Research Centre "Kurchatov Institute", Moscow
Abstract:
It is shown that rough inner walls of a trap of ultracold neutrons can be coated with a superfluid helium film much thicker than the depth of penetration of ultracold neutrons into helium. This coating should reduce the rate of loss of ultracold neutrons caused by absorption in the walls of the trap by orders of magnitude. It is demonstrated that triangular roughness is more efficient than rectangular for the reduction of the rate of loss of ultracold neutrons. Triangular roughness is more easily implemented technically and such diffraction gratings are fabricated industrially. Other methods are proposed to increase the thickness of the protective helium film.
Received: 20.09.2021 Revised: 23.09.2021 Accepted: 23.09.2021
Citation:
P. D. Grigor'ev, A. M. Dyugaev, T. I. Mogilyuk, A. D. Grigor'ev, “On the possibility of a significant increase in the storage time of ultracold neutrons in traps coated with a liquid helium film”, Pis'ma v Zh. Èksper. Teoret. Fiz., 114:8 (2021), 560–567; JETP Letters, 114:8 (2021), 493–499
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https://www.mathnet.ru/eng/jetpl6536 https://www.mathnet.ru/eng/jetpl/v114/i8/p560
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Abstract page: | 82 | References: | 16 | First page: | 9 |
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