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Proceedings Paper

Proof-of-principle contraband detection system for nonintrusive inspection
Author(s): Joseph J. Sredniawski; T. Debiak; E. Kamykowski; John E. Rathke; P. Schmor; Bill Milton; G. Stanford; Joel Rogers; J. Boyd; J. Brondo
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Paper Abstract

A proof-of-principle (POP) contraband detection system (CDS), is under construction at Northrop Grumman's Advanced Technology and Development Center. We employ gamma resonance absorption to detect nitrogen or chlorine in explosives and certain forms of illegal drugs. Using tomography, 3D images of the total density and selected element density are generated. These characteristics together may be utilized with considerable confidence in determining if contraband is present in baggage or cargo. The CDS employs a high current DC electrostatic accelerator that provides a beam of proton sat either 1.75 or 1.89 MeV. These high energy particles impinge upon a target coated with 13C or 34S. The resultant resonant gamma rays are preferentially absorbed in either 14N or 35Cl. Because of the penetrating power of the gamma rays, this approach can be utilized for inspection of fully loaded aircraft containers such as the LD3. With proper design for handling baggage and with certain CDS design features not present in the POP, throughputs approaching 2000 bags/hour are estimated. Furthermore, the technology being developed for the CDS accelerator may have other applications such as for Boron Neutron Capture Therapy or Neutron Radiography. Our current program calls for testing of the POP CDS by late 1996. This paper presents the overall design, and characteristics of the CDS POP and the status of the program.

Paper Details

Date Published: 27 February 1997
PDF: 4 pages
Proc. SPIE 2867, International Conference Neutrons in Research and Industry, (27 February 1997); doi: 10.1117/12.267907
Show Author Affiliations
Joseph J. Sredniawski, Northrop Grumman Advanced Technology and Development Ctr. (United States)
T. Debiak, Northrop Grumman Advanced Technology and Development Ctr. (United States)
E. Kamykowski, Northrop Grumman Advanced Technology and Development Ctr. (United States)
John E. Rathke, Northrop Grumman Advanced Technology and Development Ctr. (United States)
P. Schmor, TRIUMF Technologies Inc. (Canada)
Bill Milton, TRIUMF Technologies Inc. (United States)
G. Stanford, TRIUMF Technologies Inc. (Canada)
Joel Rogers, TRIUMF Technologies Inc. (Canada)
J. Boyd, TRIUMF Technologies Inc. (Canada)
J. Brondo, Scientific Innovations, Inc. (United States)


Published in SPIE Proceedings Vol. 2867:
International Conference Neutrons in Research and Industry
George Vourvopoulos, Editor(s)

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