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Proceedings Paper

Narcotics detection using piezoelectric ringing
Author(s): Timothy J. Rayner; Erik E. Magnuson; Rebecca West; R. Lyndquist
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Paper Abstract

Piezo-electric ringing (PER) has been demonstrated to be an effective means of scanning cargo for the presence of hidden narcotics. The PER signal is characteristic of certain types of crystallized material, such as cocaine hydrochloride. However, the PER signal cannot be used to conclusively identify all types of narcotic material, as the signal is not unique. For the purposes of cargo scanning, the PER technique is therefore most effective when used in combination with quadrupole resonance analysis (QRA). PER shares the same methodology as QRA technology, and can therefore be very easily and inexpensively integrated into existing QRA detectors. PER can be used as a pre-scanning technique before the QRA scan is applied and, because the PER scan is of a very short duration, can effectively offset some of the throughput limitations of standard QRA narcotics detectors. Following is a discussion of a PER detector developed by Quantum Manetics under contract to United States Customs. Design philosophy and performance are discussed, supported by results from recent tests conducted by the U.S. Drug Enforcement Agency and U.S. Customs.

Paper Details

Date Published: 6 February 1997
PDF: 8 pages
Proc. SPIE 2936, Physics-Based Technologies for the Detection of Contraband, (6 February 1997); doi: 10.1117/12.266274
Show Author Affiliations
Timothy J. Rayner, Quantum Magnetics, Inc. (United States)
Erik E. Magnuson, Quantum Magnetics, Inc. (United States)
Rebecca West, Quantum Magnetics, Inc. (United States)
R. Lyndquist, U.S. Customs (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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