一些常用个人防护用品的弱贯穿辐射防护性能评价  

Evaluation of protection performance against weak penetration by some personal protective equipment

作　　者：韦应靖[1] 赵鹏飞 倪伟 卫晓峰[1] 李华 刘立业[1] WEI Yingjing;ZHAO Pengfei;NI Wei;WEI Xiaofeng;LIi Hua;LIU Liye(China Institute for Radiation Protection,Taiyuan 030006;CNNC Nuclear Power Operations Management Co.,Ltd.,Zhejiang Haiyan 314300)

机构地区：[1]中国辐射防护研究院,太原030006 [2]中核核电运行管理有限公司,浙江海盐314300

出　　处：《辐射防护》2018年第6期480-485,共6页Radiation Protection

摘　　要：为了掌握常用个人防护用品对不同能量β射线的防护效果,在85Kr和90Sr-90Y标准β辐射场中,测量给出了各种组合情况下常用个人防护用品对定向剂量当量率?'(0. 07)和?'(3)的防护效果。在核电站大修期间,测量了常用个人防护用品对现场部分设备的弱贯穿辐射防护效果,结果表明因被测量设备表面的β/γ值不同,个人防护用品对现场辐射的防护效果存在差异,特别是γ射线较强的场所,个人防护用品对?'(0. 07)和?'(3)的防护效果较差。实验测得防护眼镜对弱贯穿辐射防护效果较好,建议工作人员在高能β辐射场中佩戴防护眼镜作业,降低眼晶体剂量。根据所测常用个人防护用品对高能β射线防护效果较差,对于高能β辐射场所作业人员,给出了开展弱贯穿辐射监测的方法和防护的措施。In order to identify the protection effect of personal protective equipment on different energy β rays, the protection effects of personal protective equipment on H ^· '( 0. 07) and H ^· '( 3) under various combinations of different energy β radiation fields were measured in 85Kr and 90Sr - 90Y standard β radiation fields. During the outage of the nuclear power plant,the weak penetrating radiation protection effect of personal protective equipment on some positions was measured. The results show that the protective effect of personal protective equipment on field radiation is different because of the different β /γ value of the surface of the equipment being measured. Especially in the places with strong γ rays,the protective effect of personal protective equipment on H ^·'( 0. 07 ) and H ^· ' ( 3 ) is generally poor,while the protective effect of protective glasses against weak penetration radiation is rather significant. It is suggested that workers should wear protective glasses in high energy β radiation field to reduce the dose of lens. Due to the poor protective effect of personal protective equipment on high-energy β radiation,the monitoring methods and protective measures for workers working in high-energy β radiation sites are given.

关 键 词：Β射线 衰减比 H^·'(0.07) H^·'(3) 

分 类 号：TL752[核科学技术—辐射防护及环境保护]