Authors:
S. Tolmachyov Kyushu University Graduate School of Sciences 6-10-1, Hakozaki Higashi-ku, Fukuoka 812-8581 Japan

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S. Mitarai Kyushu University Kyushu University Tandem Laboratory, Faculty of Science 6-10-1, Hakozaki Higashi-ku, Fukuoka 812-8581 Japan

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N. Momoshima Kumamoto University Department of Environmental Science 2-39-1, Kurokami Kumamoto 860-8555 Japan

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M. Yamamoto Kanazawa University Tatsunokuchi Low-Level Radioactivity Laboratory Ishikawa 923-1224 Japan

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Y. Maeda Kyushu University Graduate School of Sciences 6-10-1, Hakozaki Higashi-ku, Fukuoka 812-8581 Japan

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T. Nakashima Kyushu University Kyushu University Tandem Laboratory, Faculty of Science 6-10-1, Hakozaki Higashi-ku, Fukuoka 812-8581 Japan

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Abstract  

36Cl in soil samples from the Semipalatinsk Nuclear Test Site (former USSR) was measured at Kyushu University Tandem Laboratory (KUTL) by accelerator mass spectrometry (AMS) coupled with projectile X-ray detection (PXD) technique. The separation of competing 36S and 36Cl atomic isobars, was satisfactory by PXD technique. Measured 36Cl/Cl atom ratio was (5.0±0.6).10–10 and an average activity of 36Cl was calculated as (2.0±0.2) mBq/g, which is in a good agreement with that obtained by liquid scintillation counting (LSC) method previously. Currently developed AMS system at the Kyushu University can be applied for routine 36Cl analysis at 36Cl/Cl = 10–11 atom ratio level.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)