CR39中子个人剂量计性能实验研究  

Study on Performance Test of CR39 Personal Dosimeter for Fast Neutron

作　　者：曹磊[1] 邓君[1] 张贵英[2] 郭文[1] 钱叶侃[1] 胡爱英[1] 吉艳琴[1] 

机构地区：[1]中国疾病预防控制中心辐射防护与核安全医学所,北京100088 [2]中国原子能科学研究院,北京102413

出　　处：《辐射防护》2012年第2期103-107,共5页Radiation Protection

摘　　要：中子个人剂量监测是外照射职业监测的重要组成部分。从CR39探测中子的原理和剂量计的结构出发,对CR39中子个人剂量计的能量响应、角度响应以及对镅铍中子源产生的中子注量响应等性能进行实验,结果表明中子注量灵敏度与中子能量和入射角有较强的中子依赖性,入射中子的临界角约为64°,该批CR39对241Am-Be源的中子注量灵敏度约为2.24×10-4trs/n。Neutron personal dose monitoring is an important part of external monitoring for occupational exposure.According to the principles of neutron detecting of CR39 and its structure,experiments regarding energy response and angle response as well as dose equivalent response of CR39 neutron personal dosimeter against neutron flux emitted by Am-Be were conducted.Results show a strong dependence of neutron flux sensitivity on the energy and incident angle of neutron.The critical angle of 64° for incident neutron and neutron flux sensitivity of about 2.24×10-4 trs/n were obtained.

关 键 词：CR39固体核径迹探测器 中子个人剂量监测 性能实验 

分 类 号：TL818.1[核科学技术—核技术及应用]