A practical soil radon(^(222)Rn) measurement method

作     者：DING Weicheng WANG Yi LI Yuanjing FANG Fang YANG Liu 

作者机构：Department of Engineering Physics Tsinghua University Key Laboratory of Particle & Radiation Imaging Ministry of Education Beijing 100084 China Chengdu University of Technology Key Laboratory of Applied Nuclear Technology in Geosciences Chengdu 610069 China 

出 版 物：《Nuclear Science and Techniques》 (核技术（英文）)

年 卷 期：2010年第21卷第3期

页      面：182-186页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 09[农学] 0903[农学-农业资源与环境] 0706[理学-大气科学] 090301[农学-土壤学] 

主　　题：测量方法 氡气场 土壤 测量灵敏度 地下水勘查 铀矿勘探 非均匀性 测量数据 

摘      要：Soil radon measurement of high stability and sensitivity is widely applied,and in some applications,such as in uranium prospecting,^(222)Rn should be distinguished from ^(220)*** meet this requirement,a practical method based on soil radon diffusion and accumulation theory to measure soil radon by Alpha Particle Spectroscopy(α-PS)is discussed in this ***α-PS measurement method can effectively overcome the effects of ^(220)Rn and its daughters (^(216)Po,^(212)Bi,^(212)Po).The system can eliminate the impact of soil radon field disturbance and non-uniformity through soil radon static *** daughters(^(218)Po,^(214)Po)are accumulated under the action of an electrostatic force, which not only enhances the measurement sensitivity,but also increases robustness of the *** measurement of multiple points can increase the comparability of measurement data and the measurement efficiency. Experimental data shows that the soil radon measurement method was *** it has wide applications such as in geological prospecting,in fissure groundwater exploration and in ground subsidence inspection.