Contraband detection with natural K-40 gamma-ray emissions: numerical analysis of experimental gamma-ray signatures

Nina V. Arendtsz

doi:10.1117/12.266278

6 February 1997 Contraband detection with natural K-40 gamma-ray emissions: numerical analysis of experimental gamma-ray signatures

Nina V. Arendtsz

Author Affiliations +

Proceedings Volume 2936, Physics-Based Technologies for the Detection of Contraband; (1997) https://doi.org/10.1117/12.266278
Event: Enabling Technologies for Law Enforcement and Security, 1996, Boston, MA, United States

Abstract

A non-intrusive, passive technique for the inspection of large cargo containers for plant contraband was investigated. The method is based on the detection of naturally occurring K-40 gamma-ray emissions. The results of preliminary dynamic field tests conducted at a Canada-US border-crossing using plastic and sodium iodide detectors are reported. Speed normalized results obtained from a wide range of cargo trucks, including controls carrying known amounts of a K-40 simulant, were used in discerning the presence or absence of K-40 emissions. A multi-component feature analysis method for the classification of cargo contents was investigated.

Citation Download Citation

Nina V. Arendtsz "Contraband detection with natural K-40 gamma-ray emissions: numerical analysis of experimental gamma-ray signatures", Proc. SPIE 2936, Physics-Based Technologies for the Detection of Contraband, (6 February 1997); https://doi.org/10.1117/12.266278

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