A new escape channel for ultracold neutrons in traps

Authors
Geltenbort, P Nesvizhevsky, VV Kartashov, DG Lychagin, EV Muzychka, AY Nekhaev, GV Shvetsov, VN Strelkov, AV Kharitonov, AG Serebrov, AP Tal'daev, RR Pendlebury, JM
Citation
P. Geltenbort et al., A new escape channel for ultracold neutrons in traps, JETP LETTER, 70(3), 1999, pp. 170-175
Citations number
12
Categorie Soggetti
Physics
Journal title
JETP LETTERS
ISSN journal
00213640 → ACNP
Volume
70
Issue
3
Year of publication
1999
Pages
170 - 175
Database
ISI
SICI code
0021-3640(19990810)70:3<170:ANECFU>2.0.ZU;2-Y
Abstract
A surprising new escape channel for ultracold neutrons (UCNs) in traps was reported recently. It could be relevant to the long-standing puzzle of the "too high" loss rate of UCNs from traps, which has yet to be completely und erstood and eliminated. In the present work we positively identify the new phenomenon and investigate it in detail. The escape of UCNs from traps is d ue to rare events in which their energy undergoes a small increase (similar to 10(-7) eV). The reason for such an energy gain and its impact on the ph ysics of UCN storage is still to be investigated. (C) 1999 American Institu te of Physics. [S0021-3640(99)00415-6].