Abstract:
Objectives To detect individual effective dose of oral and maxillofacial radiation staffs and to provide scientific evidence for management of radiation protection.
Methods Monitoring of the individual external exposure dose of the diagnostic radiologists and radiological technicians was performed by a third party seasonally. The data of individual dose of the radiation workers during 2009-2018 were collected and analyzed by independent-samples t test of SPSS 19.0 software. All of the individual dose results were monitored by thermoluminescent dosimeter.
Results The maximal and minimal annual individual effective dose in 10-year was 0.46 mSv and 0.20 mSv, respectively. The annual individual effective dose was much lower than the limiting value of 20 mSv ruled by government. The maximal effective average annual individual effective dose was 0.28 mSv, and the minimal was 0.20 mSv. The average annual individual effective dose in 10-year was 0.22 mSv. The average annual individual effective dose of diagnostic radiologists was 0.21 mSv, and that of radiological technicians was 0.23 mSv. There was no statistical significance between the average annual individual effective dose of diagnostic radiologists and radiological technicians (t = -1.44, P = 0.17) .
Conclusion Strictly complying with the regulation of radiation protection could keep the average annual individual effective dose at a very low level.
Key words:
Radiology department, hospital,
External radiation dosimetry,
Individual dose,
Radiation protection
Guowen Li, Yi Liu, Minyi Cui, Donglin Zeng. Occupational external exposure dose analysis of oral and maxillofacial radiation staffs monitored for 10 years[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2021, 15(05): 292-295.