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本文介绍一种用同轴多丝正比计数器测量~(85)Kr的装置。装置探测效率为80％,灵敏度为4—10~(-12)Ci/1。它可以把气体样品密封在计数器内测量,亦可在气体流速小于61/min时进行连续测量。一、引言目前国内外测量~(85)Kr的方法很多,如电离室法、G-M计数器和塑料闪烁计数器测量法,其灵敏度范围为10~(-10)—10~(-11)Ci/1。如果把它们直接用于测量环境中的
This article describes a coaxial multi-wire proportional counter measuring ~ (85) Kr device. Device detection efficiency of 80%, the sensitivity of 4-10 ~ (-12) Ci / 1. It seals the gas sample in the counter and measures it continuously at gas flow rates less than 61 / min. I. INTRODUCTION There are many methods to measure ~ (85) Kr at home and abroad, such as ionization chamber method, GM counter and plastic scintillation counter, the sensitivity range is 10 ~ (-10) -10 ~ (-11) Ci / 1 . If you use them directly in the measurement environment