基于固体径迹探测的中子个人剂量计性能研究

摘要/Abstract

摘要： CR-39固体径迹探测器作为一款被动式的中子个人剂量计,具有方便携带、价格低廉、抗干扰能力强、对γ、β射线不敏感、对快中子响应好等优点。针对新开发的一款中子个人剂量计,根据国际标准ISO 21909-1,对新型中子个人剂量计的CR-39固体径迹探测单元的相关性能开展了实验研究。实验结果表明,CR-39固体径迹探测器具备良好的测读重复性、批次均匀性、剂量线性、稳定性、参考辐射场响应以及对光子不敏感的属性,同时给出了CR-39测量中子剂量的剂量探测下限和不确定度,为国际标准引进提供了实验数据参考。

关键词: 外照射, 中子, 个人剂量计, CR-39

Abstract: As a passive personal neutron dosimeter, CR-39 solid state nuclear track detector is convenient, cheap, insensitive to gamma and beta rays and has strong anti-interference ability, and better response to fast neutrons. A new personal neutron dosimeter has been developed combining with two measurement methods of CR-39 and albedo thermoluminescence dosimeter. Performance experiments are carried out on the CR-39 detector according to the international standard ISO 21909-1. The results show that the CR-39 solid state nuclear track detector has good repeatability, batch homogeneity, dose linearity, stability, response of reference radiation field and no photon-sensitivity. The detection threshold and uncertainty of dose measurement are presented in this paper. It provides an experimental data reference for the introduction of international standard.

Key words: external exposure, neutron, personal dosimeter, CR-39

中图分类号:

TL818+.1

焦岩, 曹勤剑, 卫晓峰, 徐园, 赵原, 刘立业. 基于固体径迹探测的中子个人剂量计性能研究[J]. 辐射防护, 2024, 44(1): 33-41.

JIAO Yan, CAO Qinjian, WEI Xiaofeng, XU Yuan, ZHAO Yuan, LIU Liye. A performance study of a new personal neutron dosimeter based on SSNTD[J]. RADIATION PROTECTION, 2024, 44(1): 33-41.

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