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Title SNM neutron detection using a time-gated synthetic aperture hybrid approach
Publication Date
Date Accessioned
Degree MS
Discipline/Department Mechanical Engineering
Degree Level masters
University/Publisher Georgia Tech
Abstract This work focuses on using forward and adjoint transport in a hybrid application of 3-D deterministic (PENTRAN) and Monte Carlo (MCNP5) codes to model a series of neutron detector blocks. These blocks, or “channels,” contain a unique set of moderators with 4 atm He-3 proportional detectors tuned to detect and profile a gross energy spectrum of a passing neutron (SNM) source. Ganging the units together as a large area system enables one to apply time gating the source-detector response to maximize signal to noise responses from a passing source with minimal background; multiple units may be positioned as a collective synthetic aperture detector array to be used as a way of performing real time neutron spectroscopy for detecting special nuclear materials in moving vehicles.
Subjects/Keywords PENTRAN; Deterministic; 3-D; 3D neutron; Transport; Detection; Time-gated; Aperture; Neutron counters; Computer simulation
Contributors Sjoden, Glenn E. (advisor); Deo, Chaitanya (committee member); Wang, Chris K. (committee member); Yi, Ce (committee member)
Language en
Country of Publication us
Record ID handle:1853/50212
Repository gatech
Date Indexed 2018-01-11
Issued Date 2013-08-01 00:00:00
Note [degree] M.S.;

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