论文部分内容阅读
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 the development and performance testing of a wide range air tritium monitor. The detector of the instrument is composed of a 2-L wire-wall ionization chamber with an internal volume and an external volume of 2 liters and can be gamma-compensated. A field-effect tube electrometer operating in the micro-current integral mode can be used in the measurement process Microcomputer automatic control. The adoption of wire-wall ionization chamber minimizes the memory effect of the tritium to be monitored. Through the performance test, the relative measurement error of the instrument is small, and the compensation of γ background has a good effect. Ideal for continuous automated monitoring of tritium emissions from tritium facilities and laboratory glove boxes or chimneys.