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### Proceedings Paper

Radiation detection and situation management by distributed sensor networks
Author(s): Janette Frigo; Sean Brennan; Ernst Esch; Diana Jackson; Vinod Kulathumani; Edward Rosten; Patrick Majerus; Adam Warniment; Angela Mielke; Michael Cai
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Paper Abstract

Detection of radioactive materials in an urban environment usually requires large, portal-monitor-style radiation detectors. However, this may not be a practical solution in many transport scenarios. Alternatively, a distributed sensor network (DSN) could complement portal-style detection of radiological materials through the implementation of arrays of low cost, small heterogeneous sensors with the ability to detect the presence of radioactive materials in a moving vehicle over a specific region. In this paper, we report on the use of a heterogeneous, wireless, distributed sensor network for traffic monitoring in a field demonstration. Through wireless communications, the energy spectra from different radiation detectors are combined to improve the detection confidence. In addition, the DSN exploits other sensor technologies and algorithms to provide additional information about the vehicle, such as its speed, location, class (e.g. car, truck), and license plate number. The sensors are in-situ and data is processed in real-time at each node. Relevant information from each node is sent to a base station computer which is used to assess the movement of radioactive materials.

Paper Details

Date Published: 19 May 2009
PDF: 11 pages
Proc. SPIE 7352, Intelligent Sensing, Situation Management, Impact Assessment, and Cyber-Sensing, 73520B (19 May 2009); doi: 10.1117/12.823176
Show Author Affiliations
Janette Frigo, Los Alamos National Lab. (United States)
Sean Brennan, Los Alamos National Lab. (United States)
Ernst Esch, Los Alamos National Lab. (United States)
Diana Jackson, Los Alamos National Lab. (United States)
Vinod Kulathumani, West Virginia Univ. (United States)
Edward Rosten, Cambridge Univ. (United Kingdom)
Patrick Majerus, Los Alamos National Lab. (United States)
Adam Warniment, Los Alamos National Lab. (United States)
Angela Mielke, Los Alamos National Lab. (United States)
Michael Cai, Los Alamos National Lab. (United States)

Published in SPIE Proceedings Vol. 7352:
Intelligent Sensing, Situation Management, Impact Assessment, and Cyber-Sensing
Stephen Mott; John F. Buford; Gabriel Jakobson, Editor(s)