Development of an ultracold-neutron source at MLNSC
S. J. Seestrom, T. J. Bowles, R. E. Hill, Geoffrey L. Greene, C. L. Morris
Abstract
S. J. Seestrom, T. J. Bowles, R. E. Hill, Geoffrey L. Greene, C. L. Morris
Abstract
Ultra Cold Neutrons (UCN) can be produced at spallation sources using a variety of techniques. To date the technique used has ben to Bragg scatter and Doppler shift cold neutrons into UCN from a moving crystal. This is particularly applicable to short-pulse spallation sources. We are presently constructing a UCN source at LANSCE using this method.In addition, large gains in UCN density should be possible using cryogenic UCN sources. Research is under way at Gatchina to demonstrate technical feasibility of a frozen deuterium source. If successful, a source of this type could be implemented at future spallation source, such as the long pulse source being planned at Los Alamos, with a UCN density that may be two orders of magnitude higher than that presently available at reactors.
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Ultra Cold Neutrons (UCN) can be produced at spallation sources using a variety of techniques. To date the technique used has ben to Bragg scatter and Doppler shift cold neutrons into UCN from a moving crystal. This is particularly applicable to short-pulse spallation sources. We are presently constructing a UCN source at LANSCE using this method.In addition, large gains in UCN density should be possible using cryogenic UCN sources. Research is under way at Gatchina to demonstrate technical feasibility of a frozen deuterium source. If successful, a source of this type could be implemented at future spallation source, such as the long pulse source being planned at Los Alamos, with a UCN density that may be two orders of magnitude higher than that presently available at reactors.
Key concepts: Spallation, Neutron source, Spallation Neutron Source, Neutron, Physics, Nuclear physics, Ultracold neutrons, Nuclear engineering