Journal Article

PreJuSER-18

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Tailored instrumentation for long-pulse neutron spallation sources

Schober, H. ; Farhi, E. ; Mezei, F. ; Allenspach, P. ; Andersen, K. ; Bentley, P. M. ; Christiansen, P. ; Cubitt, B. ; Heenan, R. K. ; Kulda, J. ; Langan, P. ; Lefmann, K. ; Lieutenant, K. ; Monkenbusch, M.FZJ* ; Willendrup, P. ; Saroun, J. ; Tindesmans, P. ; Zsigmond, G.

2008
North-Holland Publ. Co. Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.nima.2008.01.102

Abstract: Long-pulse spallation sources will offer a very high time-integrated neutron flux similar to that of the best steady-state sources. Using Monte Carlo simulations we show that the exceptional source qualities translate directly into strongly enhanced instrument performance for a large class of instruments ranging from high-resolution backscattering to low-resolution small-angle scattering. The relation of the source duty cycle to the required wavelength resolution of the instrument is in this context a crucial performance indicator. Very large additional gains are achievable by properly tailoring the instrument parameters to the source characteristics and by fully exploiting modern neutron optics. In all cases investigated the long-pulse structure can be turned into an asset for the instrument design by using the known concepts of pulse shaping and frame multiplication. (c) 2008 Elsevier B.V. All rights reserved.

Keyword(s): J ; neutron scattering (auto) ; instrument simulation (auto) ; Monte Carlo simulation (auto) ; spallation neutron sources (auto)

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Neutronenstreuung (IFF-5)
2. Streumethoden (IFF-4)
3. JCNS (Jülich Centre for Neutron Science JCNS (JCNS) ; JCNS)

Research Program(s):

1. Kondensierte Materie (P54)
2. Großgeräte für die Forschung mit Photonen, Neutronen und Ionen (PNI) (P55)

Appears in the scientific report 2008

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