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Observation of heating of ultracold neutrons as the cause of the anomalous limitation of their confinement time in closed vessels

Journal Article · · Sov. Phys. - JETP (Engl. Transl.); (United States)
OSTI ID:6449186
The flux of neutrons with energies in the range 0.2 x 10/sup -3/--25 x 10/sup -3/ eV, equal to the number of ultracold neutrons (UCN) escaping per unit time from a vessel storing them, is registered by an external detection system surrounding the vessel. For the maximum UCN confinement time attained (approx.23 sec), corresponding to 1.4 x 10/sup 3/ collisions of a UCN with the vessel walls, between 75% and 100% of all the UCN accumulated in the vessel escape from it by inelastic scattering at the walls.
Research Organization:
Joint Institute for Nuclear Research
OSTI ID:
6449186
Journal Information:
Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 47:1; ISSN SPHJA
Country of Publication:
United States
Language:
English

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