Eur. Phys. J. AP
Volume 6, Number 2, May 1999
|Page(s)||151 - 154|
|Published online||15 May 1999|
Investigation of storage of ultra-cold neutrons in traps
Institute Laue-Langevin, 38042 Grenoble Cedex 9, France
2 Petersburg Nuclear Physics Institute, 188350 Gatchina, Russia
3 Joint Institute for Nuclear Research, 141980 Dubna, Russia
4 Rutherford Appelton Laboratory, Chilton, Didcot, Oxon OX11 0QX, UK and Institute of Nuclear Research and Nuclear Energy, Sofia, Bulgaria
Corresponding author: firstname.lastname@example.org
Revised: 15 December 1998
Accepted: 4 February 1999
Published online: 15 May 1999
It is known that losses of ultra-cold neutrons (UCN) from traps are due to the β-decay, up scattering and absorption on a surface but we have identified for the first time a complementary mechanism. We suppose that this arises from an increase in energy of the neutrons resulting in an upper energy spectral cut-off which is about twice higher than that for initial stored neutrons. The total probability for such a process equals ~10−5 per collision with a trap wall made of stainless steel without or with a Fomblin oil and grease coating.
PACS: 03.65.-w – Quantum mechanics / 28.20.-v – Neutron physics
© EDP Sciences, 1999
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