Neutron detection gamma ray sensitivity criteria

Richard T. Kouzes, James H. Ely, Azaree Lintereur, Emily K. MacE, Daniel L. Stephens, Mitchell L. Woodring

    Research output: Contribution to journalArticle

    28 Citations (Scopus)

    Abstract

    The shortage of 3He has triggered the search for effective alternative neutron detection technologies for national security and safeguards applications. Any new detection technology must satisfy two basic criteria: (1) it must meet a neutron detection efficiency requirement, and (2) it must be insensitive to gamma-ray interference at a prescribed level, while still meeting the neutron detection requirement. It is the purpose of this paper to define measureable gamma ray sensitivity criteria for neutron detectors. Quantitative requirements are specified for: intrinsic gamma ray detection efficiency and gamma ray absolute rejection. The gamma absolute rejection ratio for neutrons (GARRn) is defined, and it is proposed that the requirement for neutron detection be 0.9<GARRn<1.1 at a 10 mR/h exposure rate. An example of the results from a 3He based neutron detector is provided showing that this technology can meet the stated requirements. Results from tests of some alternative technologies are also reported.

    Original languageEnglish (US)
    Pages (from-to)412-416
    Number of pages5
    JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
    Volume654
    Issue number1
    DOIs
    StatePublished - Oct 21 2011

    Fingerprint

    Gamma rays
    Neutrons
    gamma rays
    neutrons
    requirements
    rejection
    Neutron detectors
    neutron counters
    National security
    rays
    interference

    All Science Journal Classification (ASJC) codes

    • Nuclear and High Energy Physics
    • Instrumentation

    Cite this

    Kouzes, Richard T. ; Ely, James H. ; Lintereur, Azaree ; MacE, Emily K. ; Stephens, Daniel L. ; Woodring, Mitchell L. / Neutron detection gamma ray sensitivity criteria. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 ; Vol. 654, No. 1. pp. 412-416.
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    abstract = "The shortage of 3He has triggered the search for effective alternative neutron detection technologies for national security and safeguards applications. Any new detection technology must satisfy two basic criteria: (1) it must meet a neutron detection efficiency requirement, and (2) it must be insensitive to gamma-ray interference at a prescribed level, while still meeting the neutron detection requirement. It is the purpose of this paper to define measureable gamma ray sensitivity criteria for neutron detectors. Quantitative requirements are specified for: intrinsic gamma ray detection efficiency and gamma ray absolute rejection. The gamma absolute rejection ratio for neutrons (GARRn) is defined, and it is proposed that the requirement for neutron detection be 0.9<GARRn<1.1 at a 10 mR/h exposure rate. An example of the results from a 3He based neutron detector is provided showing that this technology can meet the stated requirements. Results from tests of some alternative technologies are also reported.",
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    Neutron detection gamma ray sensitivity criteria. / Kouzes, Richard T.; Ely, James H.; Lintereur, Azaree; MacE, Emily K.; Stephens, Daniel L.; Woodring, Mitchell L.

    In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 654, No. 1, 21.10.2011, p. 412-416.

    Research output: Contribution to journalArticle

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