Radiation exposure in nuclear medicine: real-time measurement

Brazilian Archives of Biology and Technology

Iara Sylvain¹  Bernard Bok¹ 

[1] ,Beaujon Hospital Dept of Nuclear Medicine Clichy,France

关键词: Dosimetry;    exposure;    electronic dosimeters;    personal monitoring;    equivalent dose;   

DOI  :  10.1590/S1516-89132002000500015

来源: SciELO

【 摘 要 】

French regulations have introduced the use of electronic dosimeters for personal monitoring of workers. In order to evaluate the exposure from diagnostic procedures to nuclear medicine staff, individual whole-body doses were measured daily with electronic (digital) personal dosimeters during 20 consecutive weeks and correlated with the work load of each day. Personal doses remained always below 20 µSv/d under normal working conditions. Radiation exposure levels were highest to tech staff, nurses and stretcher-bearers. The extrapolated annual cumulative doses for all staff remained less than 10 % of the maximum legal limit for exposed workers (2 mSv/yr). Electronic dosimeters are not technically justified for routine survey of staff. The high sensitivity and immediate reading of electronic semiconductor dosimeters may become very useful for exposure control under risky working conditions. It may become an important help for optimising radiation protection.

【 授权许可】

CC BY-NC   
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