Authors:
Y. Ishikawa Environmental Radioactivity Research Institute of Miyagi Ise 986-22 Onagawa-cho (Japan)

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H. Murakami Environmental Radioactivity Research Institute of Miyagi Ise 986-22 Onagawa-cho (Japan)

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T. Sekine Tohoku University Department of Chemistry, Faculty of Science Aoba-ku 980 Sendai (Japan)

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T. Saito Tohoku University Department of Chemistry, Faculty of Science Aoba-ku 980 Sendai (Japan)

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K. Yoshihara Tohoku University Department of Chemistry, Faculty of Science Aoba-ku 980 Sendai (Japan)

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Abstract  

A convenient non-destructive method for the determination of low level210Pb and226Ra with an ordinary high-purity Ge-detector is presented. The ordinary Ge-detectors used in this work were available to measure 46.5 keV -rays of210Pb. These detectors were also useful for the non-destructive analysis of low-level226Ra in lime-stone and calcium chemicals when a stream of nitrogen gas was maintained around the detectors. By this method, measurements could be carried out not only for210Pb and226Ra but also for other -emitting radionuclides simultaneously, using the same detector. The detection limits of about 1 Bq per sample for210Pb and about 0.05 Bq per sample for226Ra, respectively, were estimated, when the samples were counted for 1–2 days.

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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)