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近年来的一个特点是,人们应用射气法普查放射性原料的兴趣越来越浓。部分原因是,在普查工作中应用射气径迹法和电子α仪测量技术等“曝光”法测量氡浓度,由气体取样和壤中氡浓度随时问的变化给测量结果
One of the characteristics of recent years is that people are more and more interested in applying radiometry to census radiological raw materials. Part of the reason is that the radon concentration is measured by “exposure” methods such as the gas-jet method and the electronic alpha-meter measurement technique in the census work. Changes in the gas sampling and radon concentration in the soil at any time give measurement results