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Proceedings Paper

Contraband detection using high-energy gamma rays from 16O*
Author(s): Bradley J. Micklich; Charles L. Fink; Leonid Sagalovsky; Donald L. Smith
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Paper Abstract

High-energy monoenergetic gamma rays (6.13 and 7.12 MeV) from the decay of excited states of the 16O* nucleus are highly penetrating and thus offer potential for non- intrusive inspection of loaded containers for narcotics, explosives, and other contraband items. These excited states can be produced by irradiation of water with 14-MeV neutrons from a DT neutron generator or through the 19F(p,alpha)16O* reaction. Resonances in 19F(p,alpha)16O* at proton energies between 340 keV and 2 MeV allow use of a low-energy accelerator to provide a compact, portable gamma source of reasonable intensity. The present work provides estimates of gamma source parameters and suggests how various types of contraband could be detected. Gamma rays can be used to perform transmission or emission radiography of containers or other objects. Through the use of (gamma,n) and (gamma,fission) reactions, this technique is also capable of detecting special nuclear materials such as deuterium, lithium, beryllium, uranium, and plutonium. Analytic and Monte Carlo techniques are used to model empty and loaded container inspection for accelerator-produced gamma, radioisotope, and x-ray sources.

Paper Details

Date Published: 6 February 1997
PDF: 9 pages
Proc. SPIE 2936, Physics-Based Technologies for the Detection of Contraband, (6 February 1997); doi: 10.1117/12.266270
Show Author Affiliations
Bradley J. Micklich, Argonne National Lab. (United States)
Charles L. Fink, Argonne National Lab. (United States)
Leonid Sagalovsky, Argonne National Lab. (United States)
Donald L. Smith, Argonne National Lab. (United States)

Published in SPIE Proceedings Vol. 2936:
Physics-Based Technologies for the Detection of Contraband
Lyle O. Malotky; John J. Pennella, Editor(s)

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