Determination of trace level thorium and uranium in high purity gadolinium sulfate using ICP-MS with solid-phase chromatographic extraction resins

S. Ito, Y. Takaku, M. Ikeda, Y. Kishimoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The Super Kamiokand-Gadolinium (SK-Gd) project is the upgrade of the Super-Kamiokande (SK) detector in order to discover Supernova Relic Neutrinos (SRNs) by loading 0.2% of Gd2(SO4)3 into a 50 kton of the SK water tank. In order to continue solar neutrino measurement with low energy threshold at ∼3.5 MeV, main radioactive contamination, U and Th in Gd2(SO4)3, should be purified before loading. We developed solid-phase extraction technique to measure low concentration of U and Th in Gd2(SO4)3 by ICP-MS. The extraction technique and current status will be presented.

Original languageEnglish
Title of host publicationLow Radioactivity Techniques 2017, LRT 2017
Subtitle of host publicationProceedings of the 6th International Workshop on Low Radioactivity Techniques
EditorsDouglas S. Leonard
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416130
DOIs
Publication statusPublished - 2018 Jan 3
Externally publishedYes
Event6th International Workshop on Low Radioactivity Techniques, LRT 2017 - Seoul, Korea, Republic of
Duration: 2017 May 232017 May 27

Publication series

NameAIP Conference Proceedings
Volume1921
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference6th International Workshop on Low Radioactivity Techniques, LRT 2017
CountryKorea, Republic of
CitySeoul
Period17/5/2317/5/27

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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