Current levels of Pu isotopes and 137Cs at the former Soviet Union's Semipalatinsk nuclear test site

被引：0
|
作者：
Yamamoto, M
Tsumura, A
Tsukatani, T [1 ]
机构：
[1] Kanazawa Univ, Low Level Radioact Lab, Tatsunokuchi, Ishikawa 92312, Japan
[2] Natl Inst Agroenvironm Sci, Tsukuba, Ibaraki 305, Japan
[3] Kyoto Univ, Kyoto Inst Econ Res, Kyoto 606, Japan
来源：
RADIOCHIMICA ACTA | 1998年 / 81卷 / 01期
关键词：
Pu isotope; Pu-240/Pu-239 atomic ratio; Cs-137; soil; Semipalatinsk; nuclear test site;
D O I：
暂无
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
This paper is a report on our survey of residual radioactivity in the soil of the Semipalatinsk nuclear test site in the former USSR. The soil was sampled at approximately 30 sites along the roads connecting Kurchatov City, ground zero for the first USSR nuclear test, Balapan, Degelen Mountain and Salzhal settlement. The radioactivity levels of Cs-137, Pu-238 and Pu-239,Pu-240 as well as the Pu-240/Pu-239 atomic ratios in the soil were determined. Although Cs-137 was within typical environmental levels except for an area near ground zero, Pu-239,Pu-240 was at elevated levels contaminated with weapons-grade plutonium in all areas we visited.
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页码：21 / 28
页数：8
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