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Proceedings Paper

SNS magnetism reflectometer: basic design and neutron guide optimization using Monte Carlo simulations
Author(s): Wai-Tung Lee; Frank Klose
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Paper Abstract

In this contribution, we summarize the optimization of the neutron guide optics of the Magnetism Reflectometer, which is currently under construction at the Spallation Neutron Source. The guide system consists of a straight source tube, a polygonal curved multi-channel bender, and a converging guide section. The bender will be essential for high-energy neutron and g-ray background suppression, while the converging guide will focus the neutron beam onto the sample. Monte Carlo (MC) numerical methods were used to optimize the guide performance. The flux on sample and detector count rates were systematically determined for various guide configurations. The impact of guide imperfections like surface waviness and misalignment of sections are also studied.

Paper Details

Date Published: 8 November 2001
PDF: 12 pages
Proc. SPIE 4509, Neutron Optics, (8 November 2001); doi: 10.1117/12.448069
Show Author Affiliations
Wai-Tung Lee, Oak Ridge National Lab. (United States)
Frank Klose, Oak Ridge National Lab. (United States)

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

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