CAJ | 학술논문

基于液体闪烁计数原理和滤膜采样技术，建立了一种氡（222 Rn）子体体积活度和α潜能浓度的测量方法。应用该方法对氡室中处于放射性平衡状态的氡子体体积活度进行了取样测量，氡子体α潜能浓度测量结果的扩展不确定度小于1.5％（k ＝2）；用α能谱法对氡子体液体闪烁计数测量方法进行了旁证，两种方法的测量结果在不确定度范围内一致。
기우액체섬삭계수원리화려막채양기술，건립료일충동（222 Rn）자체체적활도화α잠능농도적측량방법。응용해방법대동실중처우방사성평형상태적동자체체적활도진행료취양측량，동자체α잠능농도측량결과적확전불학정도소우1.5％（k ＝2）；용α능보법대동자체액체섬삭계수측량방법진행료방증，량충방법적측량결과재불학정도범위내일치。
Based on liquid scintillation counting,a measuring method of 222 Rn progeny volume activity is established. Using this kind of method,measurements are executed in NIM’s radon chamber when 222 Rn and its progenies get to the secure equilibrium,and a typically expanded uncertainty of 1. 5%(k = 2)for the potential alpha energy concentration is obtained. Comparative measurements based on the alpha energy spectrum are also executed and the results of the two methods agree within the estimated uncertainty limit.