Development of 129I-AMS system at MALT and measurements of 129I concentrations in several Japanese soils

被引：47
|
作者：
Matsuzaki, Hiroyuki
Muramatsu, Yasuyuki
Kato, Kazuhiro
Yasumoto, Masaru
Nakano, Chuichiro
机构：
[1] Univ Tokyo, Sch Engn, Dept Nucl Engn & Management, Bunkyo Ku, Tokyo 1130032, Japan
[2] Gakushuin Univ, Fac Sci, Dept Chem, Toshima Ku, Tokyo 1718588, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2007年 / 259卷 / 01期
关键词：
accelerator mass spectrometry (AMS); I-129; Japanese soils;
D O I：
10.1016/j.nimb.2007.01.216
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The I-129 AMS system at MALT (Micro Analysis Laboratory, Tandem accelerator, The University of Tokyo) was reconfigured to use a gas ionization detector and achieved a background I-129/I-127 < 3 x 10(-14). A procedure for separating iodine from soil samples was developed and validated using IAEA standard reference material IAEA-375 (Chernobyl soil). The method was applied to analyze I-129/I-127 ratios as well as I-129 concentrations in several Japanese soils. The I-129/I-127 ratios of the measured surface soils are in the range of the order of 10(-10)-10(-7). The highest ratio was found in a sample collected in the vicinity of a nuclear fuel reprocessing plant. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：721 / 726
页数：6
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