一种宽量程空气中氚监测仪的研制  

Development of a wide rage monitor for tritium in air

作　　者：马雄楠[1] 杨海兰[1] 保莉[1] 王晓东[1] 张艾明[1] 

机构地区：[1]中国辐射防护研究院,山西太原030006

出　　处：《自动化与仪器仪表》2016年第7期55-56,59,共3页Automation & Instrumentation

摘　　要：介绍一种宽量程空气中氚监测仪的研制与性能测试。仪器的探测器由1个内外体积各为2升、可进行γ补偿的同轴补偿2L丝壁电离室构成,配备一台工作在微电流积分模式的场效应管静电计,可以在测量过程采用微电脑自动控制。采用丝壁电离室,对被监测氚产生的记忆效应减到最小,通过性能测试,该仪器相对测量误差较小,对γ本底的补偿,有着良好的效果。特别适用于氚设施和实验室手套箱或烟囱排出氚的连续自动监测。This paper introduces developmen and realize of a wide rage real time continuous tritium monitor. The detector of the instrument is comprised of a coaxial open wall ionization chamber with the effective volume of 2L which enables to minimize the remember effect of the ionization chamber due to contamination by the monitored tritium. The detector is equipped with a FET static electrometer working in micro- current integration mode. The measurement process of the tritium monitor can be controlled automatically by a micro processor sheet. It,sγbackground compensation rate is better. It,s relatively error is low. It is especially application for monitoring tritium in off- gas effluence from glove box or stack of tritium facility and laboratory.

关 键 词：氚监测仪 电离室 性能测试 

分 类 号：TL81[核科学技术—核技术及应用]