X591.02
通过对空气中钍射气^220Rn探测方法的分析和数据计算，将空气中钍射气活性炭收集器应用于实地测量，同时针对在测量γ能谱时出现的干扰现象给出相应的处理方法和优化措施，从而表明用活性炭收集并测量环境空气中钍射气^220Rn的方法是有效的。
The activated charcoal moniter for thoron 220 Rn in air is applied into on the spot detection through analyse the method and the calculation of the data of detecting thoron 220 Rn in air.At the same time,the relevant method of settlement and the measure of improvement are introduced in accordance with disturbance which appeared when spectrum is surveyed,which in dicates that it is effective to use activated charcoal to collect and measure thoron 220 Rn in air.
