A novel apparatus for the investigation of material properties for the storage of ultracold neutrons

Authors :: Bryś, T.
Daum, M.
Fierlinger, P.
Geltenbort, P.
George, D.
Gupta, M.
Henneck, R.
Heule, S.
Horvat, M.
Kasprzak, M.
Kirch, K.
Kohlik, K.
Negrazus, M.
Pichlmaier, A.
Straumann, U.
Vrankovic, V.
Wermelinger, C.
Source :: Nuclear Instruments & Methods in Physics Research Section A. Sep2005, Vol. 550 Issue 3, p637-646. 10p.
Publication Year :: 2005
Abstract: Abstract: We have built a novel apparatus for the investigation of materials for the storage of ultracold neutrons. Neutrons are filled into a storage volume, confined at the bottom by a magnetic field, at the top by gravity and at the sides by the slit-less sample surface under investigation. For different beryllium and diamond-like carbon samples, storage times up to 200s were obtained at room temperature. The corresponding loss parameters for ultracold neutrons varied between 4.2 and per wall collision. [Copyright &y& Elsevier]

Subjects :: *PARTICLES (Nuclear physics)
*MAGNETIC fields
*BERYLLIUM
*CARBON

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