228Ra/226Ra activity ratio in groundwater around Mount Fuji, Japan

被引：2

作者：

Ohta, Tomoko ^{[1
]}

Mahara, Yasunori ^{[1
]}

Miyakawa, Kimio ^{[2
]}

Kubota, Takumi ^{[1
]}

Tagami, Keiko ^{[3
]}

Sato, Jun ^{[4
]}

机构：

[1] Kyoto Univ, Inst Res Reactor, Kyoto 6068501, Japan

[2] Cent Res Inst Elect Power Ind, Civil Engn Lab, Chiba, Japan

[3] Natl Inst Radiol Sci, Off Biospher Assessment Waste Desposal, Chiba, Japan

[4] Meiji Univ, Sch Sci & Technol, Tokyo 101, Japan

来源：

ENVIRONMENTAL RADIOACTIVITY 2010 | 2012年 / 24卷

关键词：

ISOTOPES; RA-228;

D O I：

10.1051/epjconf/20122403003

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We estimated the groundwater age from Ra-228/Ra-226 ratios in young groundwater and relevant rocks in the volcanic area of the Kakitagawa River around Mount Fuji, Japan, and compared our results with those from H-3/He-3 age determination. The groundwater residence time estimated from the Ra-228/Ra-226 activity ratio in groundwater and relevant rocks agreed well with the H-3/He-3 age, suggesting that the Ra-228/Ra-226 ratio of groundwater can be used to estimate residence time of young groundwater in volcanic areas.

引用

页数：8

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