Characterization of the neutron detector upgrade to the GP-SANS and Bio-SANS instruments at HFIR

Kevin D. Berry, Katherine M. Bailey, Justin Beal, Yacouba Diawara, Loren Funk, J. Steve Hicks, A. B. Jones, Kenneth C. Littrell, S. V. Pingali, P. R. Summers, Volker S. Urban, David H. Vandergriff, Nathan H. Johnson, Brandon J. Bradley

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Over the past year, new 1 m x 1 m neutron detectors have been installed at both the General Purpose SANS (GP-SANS) and the Bio-SANS instruments at HFIR, each intended as an upgrade to provide improved high rate capability. This paper presents the results of characterization studies performed in the detector test laboratory, including position resolution, linearity and background, as well as a preliminary look at high count rate performance.

Funding

Oak Ridge National Laboratory is managed by UT-Battelle, LLC , under Contract Number DE-AC05-000R22725 for the US Department of Energy. Many thanks to Lowell Crow for his support and assistance at the HFIR CG-1 beamline, and for informative discussions on the development and operation of the neutron detectors in use at the SNS and HFIR.

FundersFunder number
U.S. Department of Energy
Oak Ridge National Laboratory
UT-BattelleDE-AC05-000R22725

    Keywords

    • Helium-3 proportional counter
    • Linear position sensitive detector
    • Small angle neutron scattering

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