| ID | 61253 |
| FullText URL | |
| Author |
Ito, S.
Okayama University, Faculty of Science
Ichimura, K.
Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo
Takaku, Y.
Institute for Environmental Sciences, Department of Radioecology
Abe, K.
Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo
Harada, M.
Okayama University, Faculty of Science
Ikeda, M.
Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo
Ito, H.
Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo
Kishimoto, Y.
Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo
Nakajima, Y.
Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo
Okada, T.
Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo
Sekiya, H.
Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo
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| Abstract | Chemical extraction using a molecular recognition resin named "Empore Radium Rad Disk" was developed to improve sensitivity for the low concentration of radium (Ra). Compared with the previous method, the extraction process speed was improved by a factor of three and the recovery rate for Ra-226 was also improved from 81 +/- 4% to > 99.9%. The sensitivity on the 10(-1) mBq level was achieved using a high-purity germanium detector. This improved method was applied to determine Ra-226 in Gd-2(SO4)(3)center dot 8H(2)O which will be used in the Super-Kamiokande Gadolinium project. The improvement and measurement results are reported in this paper.
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| Published Date | 2020-09-20
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| Publication Title |
Progress of Theoretical and Experimental Physics
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| Volume | volume2020
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| Issue | issue9
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| Publisher | Oxford University Press
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| Start Page | 093H02
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| ISSN | 2050-3911
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| Content Type |
Journal Article
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| language |
English
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| OAI-PMH Set |
岡山大学
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| Copyright Holders | © The Author(s) 2020.
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| File Version | publisher
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| DOI | |
| Web of Science KeyUT | |
| Related Url | isVersionOf https://doi.org/10.1093/ptep/ptaa105
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| License | http://creativecommons.org/licenses/by/4.0/
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| Funder Name |
Japan Society for the Promotion of Science
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| 助成番号 | 26104004
26104006
19H05807
19H05808
26000003
17K14290
18J00049
|
