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Proceedings Paper

Device for cutting the time tail from spallation neutron pulses
Author(s): Paul Langan; Benno P. Schoenborn; Luke L. Daemen
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Paper Abstract

The presence of long time tails in the neutron pulse produced by spallation sources is sometimes a problem in that it leads to background and can diminish the resolving power of the spectrometer. This problem is potentially severe with coupled moderators that are capable of providing increased intensity but at the cost of longer tails. The simple device we propose here is based on rocking a stack of multi-layers in the incident beam to attenuate these tails in a given band of incident wavelengths. The device and its operation are described and we present the results of Monte Carlo simulations.

Paper Details

Date Published: 8 November 2001
PDF: 7 pages
Proc. SPIE 4509, Neutron Optics, (8 November 2001); doi: 10.1117/12.448077
Show Author Affiliations
Paul Langan, Los Alamos National Lab. (United States)
Benno P. Schoenborn, Los Alamos National Lab. (United States)
Luke L. Daemen, Los Alamos National Lab. (United States)

Published in SPIE Proceedings Vol. 4509:
Neutron Optics
James L. Wood; Ian S. Anderson, Editor(s)

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