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Proceedings Paper

Explosives detection with quadrupole resonance analysis
Author(s): Timothy J. Rayner; Benjamin D. Thorson; Simon Beevor; Rebecca West; Ronald A. Krauss
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Paper Abstract

The increase in international terrorist activity over the past decade has necessitated the exploration of new technologies for the detection of plastic explosives. Quadrupole resonance analysis (QRA) has proven effective as a technique for detecting the presence of plastic, sheet, and military explosive compounds in small quantities, and can also be used to identify narcotics such as heroin and cocaine base. QRA is similar to the widely used magnetic resonance (MR) and magnetic resonance imaging (MRI) techniques, but has the considerable advantage that the item being inspected does not need to be immersed in a steady, homogeneous magnetic field. The target compounds are conclusively identified by their unique quadrupole resonance frequencies. Quantum magnetics has develop and introduced a product line of explosives and narcotics detection devices based upon QRA technology. The work presented here concerns a multi-compound QRA detection system designed to screen checked baggage, cargo, and sacks of mail at airports and other high-security facilities. The design philosophy and performance are discussed and supported by test results from field trials conducted in the United States and the United Kingdom. This detection system represents the current state of QRA technology for field use in both commercial and government sectors.

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: 10.1117/12.266273
Show Author Affiliations
Timothy J. Rayner, Quantum Magnetics, Inc. (United States)
Benjamin D. Thorson, Quantum Magnetics, Inc. (United States)
Simon Beevor, Quantum Magnetics, Inc. (United States)
Rebecca West, Quantum Magnetics, Inc. (United States)
Ronald A. Krauss, Federal Aviation Administration (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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