Low-energy heating of ultracold neutrons during their storage in material bottles

We have studied the low-energy heating of ultracold neutrons during their storage. On fomblin, it is greatly suppressed for the low temperature liquid and at solidification. For non-magnetic solid materials, upper limits of 5×10 −9 (Be) and 3.6×10 −8 (Cu) per collision were found. Therefore, low-ene...

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Bibliographic Details
Published in:	Physics letters. A Vol. 309; no. 3; pp. 218 - 224
Main Authors:	Serebrov, A.P, Butterworth, J, Daum, M, Fomin, A.K, Geltenbort, P, Kirch, K, Krasnoschekova, I.A, Lasakov, M.S, Rudnev, Yu.P, Varlamov, V.E, Vassiljev, A.V
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 24-03-2003
Subjects:	Anomalous losses Low-energy heating Ultracold neutrons Anomalous losses Low-energy heating Ultracold neutrons 28.20.-v
Online Access:	Get full text
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Summary:	We have studied the low-energy heating of ultracold neutrons during their storage. On fomblin, it is greatly suppressed for the low temperature liquid and at solidification. For non-magnetic solid materials, upper limits of 5×10 −9 (Be) and 3.6×10 −8 (Cu) per collision were found. Therefore, low-energy heating is not the reason for “anomalous losses” of (2–3)×10 −5 per collision on beryllium surfaces.
ISSN:	0375-9601 1873-2429
DOI:	10.1016/S0375-9601(03)00199-3