Are portable personnel portal monitors too sensitive?

The Human Monitoring Laboratory has field tested its Portable Personnel Portal (P3) Monitors using sources up to 1700 MBq (47 mCi) to determine the alarm distance as a function of activity. The results show that the P3 monitors are highly sensitive, so much so that siting will be a problem for multi...

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Bibliographic Details
Published in:Radiation protection dosimetry 2007-01, Vol.127 (1-4), p.249-252, Article 249
Main Authors: Kramer, Gary H., Capello, Kevin, Hauck, Barry M., Brown, Jason T.
Format: Article
Language:English
Subjects:
Environmental Exposure - analysis
Equipment Design
Equipment Failure Analysis
Radiation Monitoring - instrumentation
Reproducibility of Results
Sensitivity and Specificity
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Summary:The Human Monitoring Laboratory has field tested its Portable Personnel Portal (P3) Monitors using sources up to 1700 MBq (47 mCi) to determine the alarm distance as a function of activity. The results show that the P3 monitors are highly sensitive, so much so that siting will be a problem for multiple units if multiple alarms are to be avoided. Building materials will shield the monitors allowing units to be placed closer together than in the open where there is no shielding, but windows and doors reduce shielding and complicate the siting of multiple units. In either situation, careful prior thought should be given to siting the monitors and the logistics of the crowd control techniques.
ISSN:0144-8420
1742-3406
DOI:10.1093/rpd/ncm346