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DOE OSTI · 1038485

Simulated NMIS Imaging Data for an Unknown Object

Walker, Mark E.·Mihalczo, John T.
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Abstract

This report presents simulated Nuclear Materials Identification System (NMIS) imaging data for an unclassified object, whose characteristics are initially unknown to the reader. This data will be used to test various analysis capabilities and was created with a simple deterministic ray-tracing algorithm. NMIS is a time-dependent coincidence counting system that is used to characterize both fissile and non-fissile materials undergoing nondestructive assay. NMIS characterizes materials by interrogating them with neutrons, either from an associated-particle deuterium-tritium (DT) neutron generator, which produces a time and directionally tagged monoenergetic beam of 14.1 MeV neutrons, or a time-tagged spontaneous fission source in an ionization chamber.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDSIDENTIFICATION SYSTEMSIONIZATION CHAMBERSNEUTRON GENERATORSNEUTRONSSPONTANEOUS FISSION

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Walker, Mark E., Mihalczo, John T.. 2012-04-01. Simulated NMIS Imaging Data for an Unknown Object. https://doi.org/10.2172/1038485

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