Design of a radial collimator for the SEQUOIA direct geometry chopper spectrometer

M. B. Stone; G. Sala; J. Y.Y. Lin

doi:10.1016/j.physb.2018.11.042

Design of a radial collimator for the SEQUOIA direct geometry chopper spectrometer

M. B. Stone, G. Sala, J. Y.Y. Lin

Direct Geometry

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3 Scopus citations

Abstract

The SEQUOIA direct geometry chopper spectrometer at the Spallation Neutron Source is considering acquisition of a radial collimator. We present here Monte-Carlo calculations examining the proposed collimator's performance. Through comparison of calculations with and without sample environments in place, one can determine appropriate parameters to use in the collimator design. The numerical results provide enough detail to determine the angular collimation for the radial collimator.

Original language	English
Pages (from-to)	17-21
Number of pages	5
Journal	Physica B: Physics of Condensed Matter
Volume	564
DOIs	https://doi.org/10.1016/j.physb.2018.11.042
State	Published - Jul 1 2019

Funding

This work was supported by the U.S. DOE , Office of Science , Basic Energy Sciences , Materials Sciences and Engineering Division . This research used resources at the High Flux Isotope Reactor and Spallation Neutron Source, DOE Office of Science User Facilities operated by the Oak Ridge National Laboratory. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).This work was supported by the U.S. DOE, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. This research used resources at the High Flux Isotope Reactor and Spallation Neutron Source, DOE Office of Science User Facilities operated by the Oak Ridge National Laboratory.

Funders	Funder number
U.S. DOE
U.S. Department of Energy
Office of Science
Basic Energy Sciences
Division of Materials Sciences and Engineering

Keywords

Collimation
Inelastic neutron scattering
Neutron spectroscopy

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10.1016/j.physb.2018.11.042

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abstract = "The SEQUOIA direct geometry chopper spectrometer at the Spallation Neutron Source is considering acquisition of a radial collimator. We present here Monte-Carlo calculations examining the proposed collimator's performance. Through comparison of calculations with and without sample environments in place, one can determine appropriate parameters to use in the collimator design. The numerical results provide enough detail to determine the angular collimation for the radial collimator.",

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Design of a radial collimator for the SEQUOIA direct geometry chopper spectrometer

Abstract

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Keywords

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