CERN Accelerating science

Preprint
Report number	JINR-P3-2001-49 ; P3-2001-49
Title	Investigation of Inelastic Scattering of Ultracold Neutrons with Small Energy Transfer at Solid State Surfaces
Author(s)	Lychagin, E V ; Muzychka, Yu A ; Nesvizhevsky, V V ; Nekhaev, G V ; Taldaev, R R ; Strelkov, A V ; Shetsov V N
Affiliation	(Frank Laboratory of Neutron Physics, Dubna) ; (Institut Max von Laue-Paul Langevin, Grenoble, France) ; (B.P.Konstantinov St. Petersburg Nuclear Physics Institute RAS (PNPI), Gatchina, Russia)
Publication	2001
Imprint	23 Mar 2001
Number of pages	20
Subject category	Particle Physics - Experiment
Abstract	Inelastic scattering of neutrons with small energy transfer of \sim 10^{-7} eV was investigated using gravitational UCN spectrometer. The probability of such a process at stainless steel and beryllium surfaces was measured. It was also estimated at copper surface. The measurement showed that the detected flux of neutrons scattered at beryllium and copper surfaces is \sim 2 times higher at room temperature compared to that at the liquid nitrogen temperature.
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