引用本文:蒋勇,朱小铰,王亮.某核设施外围环境γ辐射剂量率分析[J].环境监控与预警,2023,(6):37-41
JIANG Yong,ZHU Xiaojiao,WANG Liang.γ Radiation Dose Rate Analysis on Peripheral Environment of A Nuclear Facility[J].Environmental Monitoring and Forewarning,2023,(6):37-41
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某核设施外围环境γ辐射剂量率分析
蒋勇1,朱小铰2*,王亮2
1. 广元市辐射环境监测站,四川 广元 628000;2. 四川省辐射环境管理监测中心站,四川 成都 610039
摘要:
核设施外围环境γ辐射剂量率是环境保护工作中的重点监测对象。采用瞬时测量、热释光测量以及自动站连续测量3种方法分析了四川某核设施外围2011—2021年的环境γ辐射剂量率、周边居民辐射累积剂量以及这3种方法对监测结果的影响。结果表明,该核设施运行未对周围环境辐射水平造成显著影响;瞬时测量和自动站连续测量监测数据较为稳定,热释光测量易受周围环境影响造成数据波动。因此,在采用热释光测量法开展辐射环境监测时应加强对热释光剂量片布放、收取、运输、测量等环节的质量控制,并开展热释光剂量片宇宙射线响应值的测量。
关键词:  核设施  γ辐射剂量率  累积剂量  辐射监测
DOI:10.3969/j.issn.1674-6732.2023.06.006
分类号:R144.1
基金项目:四川省生态环境保护科技项目(2021HB05)
γ Radiation Dose Rate Analysis on Peripheral Environment of A Nuclear Facility
JIANG Yong1, ZHU Xiaojiao2*, WANG Liang2
1.Guangyuan Radiation Environment Monitoring Station,Guangyuan, Sichuan 628000, China; 2.Sichuan Provincial Radiation Environment Management and Monitoring Center Station,Chengdu, Sichuan 610039,China
Abstract:
The γ radiation dose rate of the peripheral environment of a nuclear facility is the key monitoring object in environmental protection work. In this study, three methods, including instantaneous measurement, thermoluminescence measurement and continuous measurement from the automatic station were used to analyze the environmental γ radiation dose rate and cumulative radiation dose of surrounding residents on the periphery of a nuclear facility in Sichuan from 2011 to 2021, and the influencing factors of the monitoring results obtained by these three methods. The results show that the operation of the nuclear facility has not significantly affected the radiation level of the surrounding environment. The instantaneous measurement and automatic station continuous measurement monitoring data are relatively stable, and the thermoluminescence measurement is susceptible to data fluctuations caused by the surrounding environment. Therefore, it is necessary to strengthen the quality control of the distribution, collection, transportation, and measurement of the thermoluminescence dose tablets, and the cosmic ray response value of thermoluminescence dose tablets should be measured.
Key words:  Nuclear facilities  γ Radiation dose rate  Cumulative dose  Radiation monitoring