论文标题
气体中放射性测量系统的发展
The development of radioactivity measurement system in gases
论文作者
论文摘要
开发了用于测量气体放射性杂质的装置，由静电收集型ra探测器和极低的放射性比例计数器组成。该设备测量材料释放到气体中的放射性杂质，以及从气体中去除ra的过滤测试。通过测量ra速率评估了新开发的比例计数器的性能。估计$^{222} $ rn的校准因子为27.4 $ \ pm $ 0.2〜计数/天/MBQ和$^{222} $ rn的背景速率为0.84 $ \ pm $ 0.13〜mbq。
A device for measuring radioactive impurities in gas is developed, consisting of an electrostatic collection type radon detector and an extremely low radioactivity proportional counter. This device measures the radioactive impurities released by materials into the gas and a filtering test for radon removal from gas. The performance of the newly developed proportional counter was evaluated by measuring radon rate. The calibration factor of $^{222}$Rn as 27.4$\pm$0.2~count/day/mBq and the background rate of $^{222}$Rn as 0.84$\pm$0.13~mBq were estimated.
