日本土岐采集的月降水量样本中的氚、氢和氧同位素组成
TRITIUM, HYDROGEN AND OXYGEN ISOTOPE COMPOSITIONS IN MONTHLY PRECIPITATION SAMPLES COLLECTED AT TOKI, JAPAN.
作者信息
Akata N, Hasegawa H, Sugihara S, Tanaka M, Furukawa M, Kurita N, Kovács T, Shiroma Y, Kakiuchi H
机构信息
National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu, Japan.
Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Aomori, Japan.
出版信息
Radiat Prot Dosimetry. 2019 Oct 1;184(3-4):338-341. doi: 10.1093/rpd/ncz062.
Monthly precipitation samples have been collected at Toki, Japan, from November 2013 to March 2017. In this report, selected data were analysed to identify the regional hydrogen and oxygen isotope compositions. Tritium (3H) concentration in the precipitation ranged from 0.10 to 0.61 Bq L-1 and higher 3H concentrations were observed in spring rather than in other seasons. This range was similar to values reported in Chiba City, Japan. 3H concentration and the ratio d-excess, and δD values were roughly clustered according to each separate season. These regional hydrogen and oxygen isotope compositions will be used for environmental assessments of effects of the deuterium plasma experiments of the large fusion test device.
2013年11月至2017年3月期间，在日本土岐采集了月度降水样本。在本报告中，对选定数据进行了分析，以确定区域氢和氧同位素组成。降水中的氚（3H）浓度范围为0.10至0.61 Bq L-1，春季观测到的3H浓度高于其他季节。该范围与日本千叶市报告的值相似。3H浓度、d-过剩比和δD值大致按每个单独季节聚类。这些区域氢和氧同位素组成将用于大型聚变试验装置氘等离子体实验影响的环境评估。
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