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A study of the ultra-cold neutron up-scattering at reflection from solid surface

Published online by Cambridge University Press:  31 January 2009

Y. N. Pokotilovski ,
M. I. Novopoltsev  and
P. Geltenbort
Y. N. Pokotilovski*
Affiliation:
Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
M. I. Novopoltsev
Affiliation:
Mordovian State University, 430000 Saransk, Russia
P. Geltenbort
Affiliation:
Institut Laue-Langevin, BP 156, 38042 Grenoble Cedex 9, France
*
[email protected]
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Abstract

We describe a method and present the results of the measurements ofspectral change of stored ultra-cold neutrons and the sub-barrier neutronup-scattering from solid surfaces to the energy range higher than theboundary energy of the sample. The method consists in measuring the neutron absorption curvesas a function of UCN storage time and the thickness of the absorbers. The quasi-elastic and inelastic UCN up-scattering probability is determinedat room temperature. The neutron spectra are inferred in monochromatic and more detailedapproximations.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 45 , Issue 2 , February 2009 , 21202
Copyright
© EDP Sciences, 2009

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