CaSo{sub 4}:Dy and LiF:Mg, Cu, P thermoluminescent dosimeters for environmental monitoring in ambient areas of a nuclear power plant
Journal Article
·
· Health Physics
- Guangdong Institute of Radiation Hygiene and Protection (China)
This paper describes CaSO{sub 4}:Dy and LiF:Mg, Cu, P which were used for ambient environmental monitoring before the nuclear power plant operation in Guangdong Daya Bay, China, in 1991. Since LiF:Mg, Cu, P was first used as an environmental dosimeter in this laboratory, the intercomparison of both thermoluminescent dosimeters, including laboratory irradiation and environmental exposure in Beijing reference spots, was conducted in cooperation with National Institute of Metrology and Laboratory of Industrial Hygiene, Ministry of Public Health. The results indicated that the measured values of both thermoluminescent dosimeters were in agreement with the error being less than {plus_minus}2% for the laboratory irradiation. The results of measurement by both thermoluminescent dosimeters were quite in agreement with environmental reference exposure rates measured by a pressurized ionization chamber. The largest error of CaSO{sub 4}:Dy was -11% while that of LiF:Mg, Cu, P was -13%. The environmental monitoring results in Daya Bay also showed that the differences of measurement results between two thermoluminesceent dosimeters were not significant. The experiment results indicated that LiF:Mg, Cu, P was a good environmental dosimeter. 14 refs., 3 figs., 3 tabs.
- OSTI ID:
- 369935
- Journal Information:
- Health Physics, Journal Name: Health Physics Journal Issue: 3 Vol. 70; ISSN HLTPAO; ISSN 0017-9078
- Country of Publication:
- United States
- Language:
- English
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