短寿命γ放射性气溶胶在线监测仪设计  

Design of Short-lived Gamma Radioactive Aerosol On-lineMonitor

作　　者：马弢[1] 李建伟[1] 孟丹[1] 张富国 商洁[1] 马英豪[1] 杨柳[1] 张艳婷 畅翔 MA Tao;LI Jian-wei;MENG Dan;ZHANG Fu-guo;SHANG Jie;MA Ying-hao;YANG Liu;ZHANG Yan-ting;CHANG Xiang(China Institute for Radiation Protection,Taiyuan Shanxi 030006,China)

机构地区：[1]中国辐射防护研究院,山西太原030006

出　　处：《核电子学与探测技术》2022年第2期250-254,共5页Nuclear Electronics & Detection Technology

摘　　要：核电厂或核动力反应堆核事故状况下,短寿命γ放射性气溶胶是引起人员内照射的主要来源之一.在线监测反应堆核设施周边短寿命γ气溶胶活度浓度对保护工作人员健康具有重要意义.本文设计了一种短寿命γ放射性气溶胶在线监测仪,文中介绍了监测仪的设计原理、无源效率刻度方法、短寿命γ放射性气溶胶活度浓度衰变修正方法等,并通过现场试验,验证了无源效率刻度方法的有效性,并对仪器的可靠性进行了测试.In the event of a nuclear accident at a nuclear power plant or nuclear power reactor,short-lived gamma radioactive aerosol is one of the main sources of internal exposure.On line monitoring of shortlived around reactor nuclear facilities gamma aerosol activity concentration is of great significance to protect the health of workers.In this paper,a short-lived gamma an on-line radioactive aerosol monitor is designed.This paper introduces the design principle of the monitor,the passive efficiency calibration method and the activity concentration decay correction method of short-lived gamma radioactive aerosol.Through field experiments,the effectiveness of the passive efficiency calibration method is verified,and the reliability of the instrument is tested.

关 键 词：短寿命γ放射性气溶胶 无源效率刻度 在线监测 衰变修正 

分 类 号：TL81[核科学技术—核技术及应用]