Abstract:
:Health physicists are usually concerned with small amounts of radioactivity and strive to develop techniques to measure them; however, following a terrorist attack involving radioactive materials the converse might be the case, and exposed persons may be heavily contaminated. The Human Monitoring Laboratory (HML) has field tested its Portable Personnel Portal (P3) monitors using sources up to 1,700 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 crowd control techniques.
journal_name
Health Physjournal_title
Health physicsauthors
Kramer GH,Capello K,Hauck BM,Brown JTdoi
10.1097/01.HP.0000218425.48988.f3subject
Has Abstractpub_date
2006-10-01 00:00:00pages
367-72issue
4eissn
0017-9078issn
1538-5159pii
00004032-200610000-00009journal_volume
91pub_type
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