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Title: Neutron and photon transport in seagoing cargo containers

Abstract

Factors affecting sensing of small quantities of fissionable material in large seagoing cargo containers by neutron interrogation and detection of {beta}-delayed photons are explored. The propagation of variable-energy neutrons in cargos, subsequent fission of hidden nuclear material and production of the {beta}-delayed photons, and the propagation of these photons to an external detector are considered explicitly. Detailed results of Monte Carlo simulations of these stages in representative cargos are presented. Analytical models are developed both as a basis for a quantitative understanding of the interrogation process and as a tool to allow ready extrapolation of our results to cases not specifically considered here.

Authors:
; ; ; ;  [1];  [2]
  1. Lawrence Livermore National Laboratory, N-Division, 7000 East Avenue, Livermore, California 94550 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
20713932
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 97; Journal Issue: 9; Other Information: DOI: 10.1063/1.1887835; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; CARGO; COMPUTERIZED SIMULATION; CONTAINERS; EXTRAPOLATION; FISSION; FISSIONABLE MATERIALS; MARITIME TRANSPORT; MONTE CARLO METHOD; NEUTRON DETECTION; NEUTRON TRANSPORT; NEUTRON TRANSPORT THEORY; NUCLEAR FUELS; PHOTON TRANSPORT; REACTOR FUELING; SECURITY

Citation Formats

Pruet, J., Descalle, M.-A., Hall, J., Pohl, B., Prussin, S.G., and Department of Nuclear Engineering, University of California at Berkeley. Neutron and photon transport in seagoing cargo containers. United States: N. p., 2005. Web. doi:10.1063/1.1887835.
Pruet, J., Descalle, M.-A., Hall, J., Pohl, B., Prussin, S.G., & Department of Nuclear Engineering, University of California at Berkeley. Neutron and photon transport in seagoing cargo containers. United States. doi:10.1063/1.1887835.
Pruet, J., Descalle, M.-A., Hall, J., Pohl, B., Prussin, S.G., and Department of Nuclear Engineering, University of California at Berkeley. Sun . "Neutron and photon transport in seagoing cargo containers". United States. doi:10.1063/1.1887835.
@article{osti_20713932,
title = {Neutron and photon transport in seagoing cargo containers},
author = {Pruet, J. and Descalle, M.-A. and Hall, J. and Pohl, B. and Prussin, S.G. and Department of Nuclear Engineering, University of California at Berkeley},
abstractNote = {Factors affecting sensing of small quantities of fissionable material in large seagoing cargo containers by neutron interrogation and detection of {beta}-delayed photons are explored. The propagation of variable-energy neutrons in cargos, subsequent fission of hidden nuclear material and production of the {beta}-delayed photons, and the propagation of these photons to an external detector are considered explicitly. Detailed results of Monte Carlo simulations of these stages in representative cargos are presented. Analytical models are developed both as a basis for a quantitative understanding of the interrogation process and as a tool to allow ready extrapolation of our results to cases not specifically considered here.},
doi = {10.1063/1.1887835},
journal = {Journal of Applied Physics},
number = 9,
volume = 97,
place = {United States},
year = {Sun May 01 00:00:00 EDT 2005},
month = {Sun May 01 00:00:00 EDT 2005}
}