论文部分内容阅读
本文叙述了一种适合于分析微量永久性气体的放射性He电离鉴定器的工艺流程,除建立了He的纯化系统及分析测量装置外,还进行了鉴定器体积大小、放射源强度、极化电压及载气流速变化等条件试验,并用指数稀释方法测定了鉴定器对若干气体的感应性能。CH_4,O_2,N_2,Ar的检出限量为10~(-5)微升,H_2为10~(-4)微升,Ne为10~(-2)微升。鉴定器的线性范围达10~3。
This paper describes a suitable process for the analysis of trace amounts of permanent gas radioactive He ionization identification process, in addition to the establishment of a He purification system and analysis and measurement devices, but also for the identification of the size of the volume, the source intensity, the polarization voltage And the carrier gas flow rate changes and other conditions test, and the use of exponential dilution method for determining the induction of a number of gas sensors. The detection limit of CH_4, O_2, N_2 and Ar was 10 ~ (-5) microliters, H 2 was 10 ~ (-4) microliters and Ne was 10 ~ (-2) microliters. Verifier range of 10 to 3 linear.