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Proceedings Paper

System tuning for x-ray scatter measurements in explosive detection
Author(s): Robert D. Speller; Catharine Malden; Evelyn Ng; Julie A. Horrocks; Russell D. Luggar; Richard John Lacey
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Paper Abstract

The use of scattered radiation in the production of signatures for explosive detection has been studied. Signatures have been measured and the spectral analysis of these using multivariate statistics has demonstrated that explosives within realistic environments can be recognized. The problem remains of how to use this information in the time frame allowed by airport baggage security checks. To address these problems we have developed a 'tuned' system approach. The energy-angle space diagrams have been created and the areas containing the greatest information density in the presence of an explosive have been identified. A specially designed detector (CdZnTe) array has been built to match these regions. The array has been used to identify explosives hidden within realistic case situations.

Paper Details

Date Published: 6 February 1997
PDF: 10 pages
Proc. SPIE 2936, Physics-Based Technologies for the Detection of Contraband, (6 February 1997); doi: 10.1117/12.266269
Show Author Affiliations
Robert D. Speller, Univ. College London (United Kingdom)
Catharine Malden, Univ. College London (United Kingdom)
Evelyn Ng, Univ. College London (United Kingdom)
Julie A. Horrocks, St. Bartholomew's Hospital (United Kingdom)
Russell D. Luggar, St. Bartholomew's Hospital (United Kingdom)
Richard John Lacey, Police Science Development Branch (United Kingdom)


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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