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Development of a real-time radiological area monitoring network for emergency response at Lawrence Livermore National Laboratory

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5 Author(s)
Bertoldo, N.A. ; Lawrence Livermore Nat. Lab., Univ. of California, Livermore, CA, USA ; Hunter, S.L. ; Fertig, R.A. ; Laguna, G.W.
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A real-time radiological sensor network for emergency response was developed and deployed at the Lawrence Livermore National Laboratory (LLNL). The real-time radiological area monitoring (RTRAM) network comprises 16 Geiger-Mueller sensors positioned on the LLNL Livermore site perimeter to continuously monitor for a radiological condition resulting from a terrorist threat to site security and the health and safety of LLNL personnel. The RTRAM network sensor locations coincide with wind sector directions to provide thorough coverage of the one-square-mile site. These low-power sensors are supported by a central command center (CCC) and transmit measurement data back to the CCC computer through the LLNL telecommunications infrastructure. Alarm conditions are identified by comparing current data with predetermined threshold parameters and are validated by comparison with plausible dispersion modeling scenarios and prevailing meteorological conditions. Emergency response personnel are notified of alarm conditions by automatic radio- and computer-based notifications. A secure intranet provides emergency response personnel with current condition assessment data that enable them to direct field response efforts remotely. The RTRAM network has proven to be a reliable system since initial deployment in August 2001, and it maintains stability during inclement weather conditions.

Published in:

Sensors Journal, IEEE  (Volume:5 ,  Issue: 4 )

Date of Publication:

Aug. 2005

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