^(60) Co源辐照装置破损泄露后的退役处置  

Disposal Measures for Decommissioning After Damage and Leakage of ^(60)Co Source Irradiation Device

作　　者：荣耀 连福龙[1,2] 张道庆 黄少杰[1,2] RONG Yao;LIAN Fulong;ZHANG Daoqing;HUANG Shaojie(Henan Province Nuclear Industry Geology,Zhengzhou 450044,China;Henan Radionuclide Detection Center of Nuclear Industry,Zhengzhou 450044,China)

机构地区：[1]河南省核工业地质局,河南郑州450044 [2]河南省核工业放射性核素检测中心,河南郑州450044

出　　处：《铀矿冶》2021年第3期257-264,共8页Uranium Mining and Metallurgy

摘　　要：为解决60 Co源辐照装置破损泄露后退役处置污染问题,消除潜在辐射安全隐患,保障人民群众生命健康,通过实施^(60) Co源辐照装置破损泄露后的源项调查、源架活度及所需屏蔽铁罐厚度估算、辐照室去污、被污染水和土壤处理等处置程序,兼顾经济成本,制定了优化退役方案。对整个退役过程中工作人员受到的内外照射有效剂量进行了估算,退役过程未对环境造成新的污染。To solve the pollution problem of decommissioning disposal after the damage and leakage of early ^(60) Co source irradiation devices,eliminate potential radiation safety hazards and protect the lives and health of the people,an optimized decommissioning scheme was developed by implementing the procedures of source investigation after the damage and leakage of the ^(60) Co source irradiation device,estimation of the activity of the source frame and the thickness of the required shielding iron tank,decontamination of the irradiation chamber,pollution and soil treatment after taking into account the economic cost.The entire decommissioning process of staff by internal and external exposure to the effective dose was estimated,did not cause new pollution to the environment.

关 键 词：^(60)Co 辐照装置 源项调查 退役处置措施 剂量估算 

分 类 号：R144[医药卫生—公共卫生与预防医学] X34[环境科学与工程—环境工程]