Beamline Performance Simulations for the Fundamental Neutron Physics Beamline at the Spallation Neutron Source

Monte Carlo simulations are being performed to design and characterize the neutron optics components for the two fundamental neutron physics beamlines at the Spallation Neutron Source. Optimization of the cold beamline includes characterization of the guides and benders, the neutron transmission thr...

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Main Authors:	Huffman, P. R., Greene, G. L., Allen, R. R., Cianciolo, V., Huerto, R. R., Koehler, P., Desai, D., Mahurin, R., Yue, A., Palmquist, G. R., Snow, W. M.
Format:	Online
Language:	English
Published:	[Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology 2005
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4849594/

id	pubmed-4849594
recordtype	oai_dc
spelling	pubmed-48495942016-06-15 Beamline Performance Simulations for the Fundamental Neutron Physics Beamline at the Spallation Neutron Source Huffman, P. R. Greene, G. L. Allen, R. R. Cianciolo, V. Huerto, R. R. Koehler, P. Desai, D. Mahurin, R. Yue, A. Palmquist, G. R. Snow, W. M. Article Monte Carlo simulations are being performed to design and characterize the neutron optics components for the two fundamental neutron physics beamlines at the Spallation Neutron Source. Optimization of the cold beamline includes characterization of the guides and benders, the neutron transmission through the 0.89 nm monochromator, and the expected performance of the four time-of-flight choppers. The locations and opening angles of the choppers have been studied using a simple spreadsheet-based analysis that was developed for other SNS chopper instruments. The spreadsheet parameters are then optimized using Monte Carlo techniques to obtain the results presented in this paper. Optimization of the 0.89 nm beamline includes characterizing the double crystal monochromator and the downstream guides. The simulations continue to be refined as components are ordered and their exact size and performance specifications are determined. [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology 2005 2005-06-01 /pmc/articles/PMC4849594/ /pubmed/27308115 Text en https://creativecommons.org/publicdomain/zero/1.0/ The Journal of Research of the National Institute of Standards and Technology is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. Articles from J Res may contain photographs or illustrations copyrighted by other commercial organizations or individuals that may not be used without obtaining prior approval from the holder of the copyright.
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Huffman, P. R. Greene, G. L. Allen, R. R. Cianciolo, V. Huerto, R. R. Koehler, P. Desai, D. Mahurin, R. Yue, A. Palmquist, G. R. Snow, W. M.
spellingShingle	Huffman, P. R. Greene, G. L. Allen, R. R. Cianciolo, V. Huerto, R. R. Koehler, P. Desai, D. Mahurin, R. Yue, A. Palmquist, G. R. Snow, W. M. Beamline Performance Simulations for the Fundamental Neutron Physics Beamline at the Spallation Neutron Source
author_facet	Huffman, P. R. Greene, G. L. Allen, R. R. Cianciolo, V. Huerto, R. R. Koehler, P. Desai, D. Mahurin, R. Yue, A. Palmquist, G. R. Snow, W. M.
author_sort	Huffman, P. R.
title	Beamline Performance Simulations for the Fundamental Neutron Physics Beamline at the Spallation Neutron Source
title_short	Beamline Performance Simulations for the Fundamental Neutron Physics Beamline at the Spallation Neutron Source
title_full	Beamline Performance Simulations for the Fundamental Neutron Physics Beamline at the Spallation Neutron Source
title_fullStr	Beamline Performance Simulations for the Fundamental Neutron Physics Beamline at the Spallation Neutron Source
title_full_unstemmed	Beamline Performance Simulations for the Fundamental Neutron Physics Beamline at the Spallation Neutron Source
title_sort	beamline performance simulations for the fundamental neutron physics beamline at the spallation neutron source
description	Monte Carlo simulations are being performed to design and characterize the neutron optics components for the two fundamental neutron physics beamlines at the Spallation Neutron Source. Optimization of the cold beamline includes characterization of the guides and benders, the neutron transmission through the 0.89 nm monochromator, and the expected performance of the four time-of-flight choppers. The locations and opening angles of the choppers have been studied using a simple spreadsheet-based analysis that was developed for other SNS chopper instruments. The spreadsheet parameters are then optimized using Monte Carlo techniques to obtain the results presented in this paper. Optimization of the 0.89 nm beamline includes characterizing the double crystal monochromator and the downstream guides. The simulations continue to be refined as components are ordered and their exact size and performance specifications are determined.
publisher	[Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology
publishDate	2005
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4849594/
_version_	1613572796498051072

Beamline Performance Simulations for the Fundamental Neutron Physics Beamline at the Spallation Neutron Source

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