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DOE OSTI · 1906785

Simulated Energy Response in a Multiplicity Detector

Kistle, Hadyn M.·Hutchinson, Jesson D.·Nelson, Mark A.·Dewji, Shaheen A.
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Abstract

Neutron multiplicity analysis is used for many applications, including nonproliferation and criticality safety. Multiplicity detectors have advantages over total neutron counting as they provide the ability to assess both multiplication and mass in fissionable material. In addition, multiplicity detectors can generate real-time information, e.g., dose estimation. The ability to evaluate the detector efficiency in each application is of primary importance in producing meaningful analyses. Multiplicity detectors usually house 3 He tubes within a polyethylene moderator. If the tubes are located behind different thickness of polyethylene, they will have different energy responses. This paper assesses 3 He tube efficiency as a function of neutron energy for a specific multiplicity detector.

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY73 NUCLEAR PHYSICS AND RADIATION PHYSICSDose EstimationFissionable MaterialIntegral ExperimentsNonproliferationNuclear Criticality Safety Program (NCSP)Polyethylene Moderator

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Kistle, Hadyn M., Hutchinson, Jesson D., Nelson, Mark A., Dewji, Shaheen A.. 2020-11-18. Simulated Energy Response in a Multiplicity Detector. https://doi.org/10.13182/t123-33173

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