摘要
目的分析电子加速器探伤机产生的轫致辐射的屏蔽及对环境的影响。方法以一台20MV电子加速器探伤机为例,从电子加速器轫致辐射源的特征出发,论述了加速器的辐射防护方法,然后运用剂量估算和实测两种方法进行辐射环境评价。结果通过估算和实测,各个关心点的年剂量当量均小于剂量约束目标值。结论建设此类设施,只要加强辐射防护,加速器产生的轫致辐射对周围环境的影响是可接受的。
Objective To analyze the shielding of the radiation generated by electron acelerators and is impact on environment. Methods An example of 20MV electron accelerator is given. Based on the characteristics of electron accelerator radiation source, the method for radiation protection is discussed, then dose estimate method and dose measurement method are applied for environmental assessment. Results By estimation and measurement, annual dose of each concerned point is proved to be smaller than the defined dose. Conclusion If radiation protection is enforced when people build this equipments, the radiant impact on environment can be accepted.
出处
《中国辐射卫生》
北大核心
2005年第4期250-251,共2页
Chinese Journal of Radiological Health
关键词
电子加速器
辐射防护
环境评价
Electron Accelerator
Radiation Protection
Environmental Assessmen
