电子加速器探伤机的轫致辐射屏蔽及环境评价  

Shielding And Environmental Assessment for Electron Accelerator.

作　　者：邵和松[1] 王慧芳[1] 张骏[1] 

机构地区：[1]中国工程物理研究院,四川绵阳621900

出　　处：《中国辐射卫生》2005年第4期250-251,共2页Chinese Journal of Radiological Health

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.

关 键 词：电子加速器 辐射防护 环境评价 

分 类 号：R147[医药卫生—公共卫生与预防医学]