Radiometric determination of anthropogenic radionuclides in seawater
Radiometric determination of anthropogenic radionuclides in seawater
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DOI：
10.1016/s1569-4860(07)11004-4
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发表时间：
2008-01-01
期刊：
影响因子：
--
通讯作者：
Hirose, K.
中科院分区：
文献类型：
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作者：
Aoyama, M.;Hirose, K.
海水中的人为放射性核素一直关注其生态效应，并在海洋学上被用作示踪剂。目前，海洋水域中人为放射性核素的浓度普遍极低。海水中人为放射性核素的测定传统上采用伽马能谱、贝塔计数和阿尔法能谱等辐射测量方法。尽管近年来质谱学方法得到了广泛的发展，但辐射计量学方法仍然是确定人为放射性核素浓度的有用工具。本文介绍了海水中Cs-137、Sr-90和Pu等典型人为放射性核素的放射性测量方法，包括OGOYA地下实验室的极低本底伽马能谱等辐射测量方法的最新进展。
Anthropogenic radionuclides in seawater have been concerned with their ecological effects and have been oceanographically used as a tracer. Current concentrations of anthropogenic radionuclides in the oceanic waters are generally extremely low. Determination of anthropogenic radionuclides in seawater has been traditionally performed with radiometric methods such as gamma-spectrometry, beta-counting and alpha-spectrometry. The radiometric method is still a useful tool to determine concentrations of anthropogenic radionuclides, although recently mass spectrometric methods have been developed extensively. Here we describe the radiometric methods to determine typical anthropogenic radionuclides such as Cs-137, Sr-90 and plutonium in seawater, which includes recent development of the radiometric methods such as extremely low background gamma-spectrometry at the Ogoya Underground Laboratory (OUL).