Cold Neutron Energy Dependent Production of Ultracold Neutrons in Solid Deuterium

Journal Article · Mon Dec 31 00:00:00 EST 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.99.262502· OSTI ID:21028233

Atchison, F; Blau, B; Brandt, B van den; Brys, T; Daum, M; Fierlinger, P; Hautle, P; Henneck, R; Heule, S; Kasprzak, M; Kirch, K; Knecht, A; Konter, J A; Pichlmaier, A; Wohlmuther, M; Zsigmond, G ^[1]; Bodek, K; Kuzniak, M; Zejma, J ^[2]; Frei, A ^[3]

---

1. Paul Scherrer Institut (PSI), CH-5232 Villigen PSI (Switzerland)
2. Institute of Physics, Jagiellonian University, 30-059 Cracow (Poland)
3. Technische Universitaet Muenchen, D-85748 Garching (Germany)

A measurement of the production of ultracold neutrons from velocity-selected cold neutrons on gaseous and solid deuterium targets is reported. The expected energy dependence for two-particle collisions with well defined neutron and Maxwell-Boltzmann distributed molecular velocities is found for the gas target. The solid target data agree in shape with the phonon density-of-states curve and provide strong evidence for the phonon model including multiphonon excitations.

• OSTI ID: 21028233
• Journal Information: Physical Review Letters, Vol. 99, Issue 26; Other Information: DOI: 10.1103/PhysRevLett.99.262502; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DEUTERIUM
DEUTERIUM TARGET
ENERGY DEPENDENCE
EXCITATION
PHONONS
ULTRACOLD NEUTRONS