NDLI: Detection of Nuclear Material at Border Crossings using Motion Correlation

Content Provider	IEEE Xplore Digital Library
Author	Nicol, D.M. Tsang, R. Ammerlahn, H. Johnson, M.
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL (Nicol, D.M.)
Abstract	This paper considers the problem that arises when a vehicle carrying nuclear material is detected approaching a border crossing. As quickly as possible, and with automation we wish to identify which vehicle among all those in the area is likely to be carrying the source. We show that if the border crossing area has technology for tracking the position of vehicles, we can correlate observed movements with observed changes in levels of detected radiation - for as the vehicle carrying the material gets closer to the detector, the stronger will be the detected radiation. We use a simulation model that captures the stop-and-go dynamics of a border crossing area to evaluate our ideas, and find a highly successful technique that tracks which vehicles move just when detected radiation changes, coupled with fitting radiation intensity/distance observations to an inverse-square law. This method almost always isolates the sought vehicle just as soon as the minimum number of data observations is obtained
Starting Page	536
Ending Page	544
File Size	176271
Page Count	9
File Format	PDF
ISBN	1424405009
DOI	10.1109/WSC.2006.323127
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-12-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Motion detection Vehicle detection Radiation detectors Terrorism Radioactive materials Position measurement Computational modeling Laboratories Automation Tracking
Content Type	Text
Resource Type	Article

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Detection of nuclear material at border crossings using motion correlation

Overview of portal monitoring at border crossings

Naturally occurring radioactive materials and medical isotopes at border crossings

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Challenges for interdiction of nuclear threats at borders

Vehicle detection and tracking in video

Validation of computer models for homeland security purposes

Modeling ambient background in complex detection scenarios

Creation of realistic radiation transport models of radiation portal monitors for homeland security purposes

Detection of Nuclear Material at Border Crossings using Motion Correlation

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Detection of Nuclear Material at Border Crossings using Motion Correlation