摘要
目的:分析移动探伤用放射源贮存过程中产生的放射性污染,确定贮存场所的辐射污染水平,为放射源贮存库的辐射环境管理,控制环境风险,最大限度地减少放射性污染对环境、工作人员和公众的损伤提供依据。方法:以典型的Ⅱ类γ射线探伤放射源贮存库为例,进行了辐射污染环境检测,就辐射污染源项、辐射环境影响评价以及辐射污染防治措施等方面进行了分析。结果:10台移动探伤用放射源置于源库内时,源库周围γ空气吸收剂量率为100.0~112.3nGy/h。结论:在落实辐射安全管理制度和辐射安全防护措施的情况下,移动探伤放射源贮存对职业工作人员和公众人员的辐射污染是可控的,对周围环境产生的辐射影响较小,对环境的风险也是可控的。
Objective:To analyze the radioactive contamination produced during the storage of radioactive sources for mobile radiographic testing, determine the level of radioactive contamination in storage sites, and provide an important basis for radiation environmental management of radioactive sources storage, control of environmental risks and minimize the damage of radioactive contamination to the environment, staff and the public. Method:Taking the typical storage of type II gammaray radioactive sources as an example, the environmental pollution of radiation was detected, and the sources of radiation pollution, radiation environmental impact assessment and radiation pollution prevention and control measures were analyzed.Result:When 10 radiation sources were placed in the radiation source storage building, the absorbed dose rate of gamma air around the building was 100.0-112.3 nGy/h.Conclusion:Under the circumstances of implementing the radiation safety management system and radiation safety protection measures, the radiation pollution caused by the storage of mobile radiographic testing sources to the occupational staff and public personnel is controllable, the radiation impact on the surrounding environment is small, and the risk to the environment is controllable.
作者
程芳
王蕾
李兆轶
Cheng Fang;Wang Lei;Li Zhaoyi(Zibo Environmental Pollution Prevention and Control Center, Zibo Shandong 255032, China;Shandong Nuclear and Radiation Safety Monitoring Center, Ji’nan Shandong 250117,China)
出处
《环境与发展》
2019年第7期16-17,共2页
Environment & Development
关键词
移动探伤
放射源贮存
放射性环境污染
环境风险
Mobile radiographic testing
Radiation source storage
Radioactive environmental pollution
Environmental risk
