TY - JOUR
T1 - Neutron detection gamma ray sensitivity criteria
AU - Kouzes, Richard T.
AU - Ely, James H.
AU - Lintereur, Azaree T.
AU - MacE, Emily K.
AU - Stephens, Daniel L.
AU - Woodring, Mitchell L.
N1 - Funding Information:
This work was supported largely by the United States Department of Energy (NA-22) . Additional support was provided by Pacific Northwest National Laboratory, the Department of Defense and the Department of Homeland Security. Pacific Northwest National Laboratory is operated for the United States Department of Energy by Battelle under Contract DE-AC05-76RLO 1830. PNNL Technical Report PNNL-SA-SA-80140.
PY - 2011/10/21
Y1 - 2011/10/21
N2 - 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 0.93He based neutron detector is provided showing that this technology can meet the stated requirements. Results from tests of some alternative technologies are also reported.
AB - 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 0.93He 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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U2 - 10.1016/j.nima.2011.07.030
DO - 10.1016/j.nima.2011.07.030
M3 - Article
AN - SCOPUS:80052910797
SN - 0168-9002
VL - 654
SP - 412
EP - 416
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 1
ER -