A method for continuous measurement of radon in groundwater for earthquake prediction
A method for continuous measurement of radon in groundwater for earthquake prediction
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DOI：
10.1029/jb082i008p01353
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发表时间：
1977-03
影响因子：
--
通讯作者：
M. Noguchi;H. Wakita
中科院分区：
文献类型：
--
作者：
M. Noguchi;H. Wakita
本文介绍了一种用于地震预报的地下水氡连续测量的实用方法，特别适用于野外观测。探测器由一个用于α计数的硫化锌闪烁室和一个从地下水向气相发射氡的分离室组成。根据分配系数，气相和水中的氡浓度达到平衡。对闪烁室中氡及其子体(218Po和214Po)的α活度进行了连续计数和记录。该探测器的计数速率约为1000cpm/10−10Cirn/1，有效体积为1.61。
A practical method of continuous measurement of radon in groundwater for earthquake prediction, especially suitable for field observation, is described. The detector consists of a ZnS scintillation chamber for alpha counting and a separation chamber in which radon is emanated from groundwater to the gaseous phase. The radon concentration in the gaseous phase equilibrates with that in water according to the distribution coefficient. Alpha activities of radon and its daughters (218Po and 214Po) in the scintillation chamber are counted and recorded continuously. The counting rate of about 1000 cpm/10−10 Ci Rn/1 is obtained by the detector, which has an effective volume of 1.6 1.