Improved measurements of thoron (220Rn) in natural waters
Improved measurements of thoron (220Rn) in natural waters
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DOI：
10.1007/s10967-018-6110-z
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发表时间：
2018-08
影响因子：
1.6
通讯作者：
S. Chanyotha;P. Sola;R. Kritsananuwat;D. Lane-Smith;W. Burnett
中科院分区：
文献类型：
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作者：
S. Chanyotha;P. Sola;R. Kritsananuwat;D. Lane-Smith;W. Burnett
水中的钍（~（220）Rn）测量可用于探测海底地下水排入地表沃茨的点。由于半衰期为56 s，任何探测到的钍都意味着它靠近一个源。为了提高测量灵敏度，使用RAD 7探测器研究了气流速率对氡和钍测量的影响。根据实验室实验，2.5 L min− 1代表测量氡和钍射气的最佳气流速率。来自沿海地区的现场数据表明，使用外部空气泵产生的钍射气响应比标准设置高65%。
Thoron (220Rn) in water measurements can be useful for prospecting for points of submarine groundwater discharge into surface waters. With a 56 s half-life any detection of thoron must mean that one is close to a source. To improve measurement sensitivity, the influence of airflow rates on both radon and thoron measurements have been investigated using a RAD7 detector. Based on lab experiments, 2.5 L min−1represents an optimum airflow rate for measuring both radon and thoron. Field data from a coastal zone demonstrates that use of an external air pump produced a thoron response 65% higher than a standard setup.