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
PublisherAmerican Institute of Physics Inc.
Volume1921
ISBN (Electronic)9780735416130
DOIs
Publication statusPublished - Jan 3 2018
Event6th International Workshop on Low Radioactivity Techniques, LRT 2017 - Seoul, Korea, Republic of
Duration: May 23 2017May 27 2017

Other

Other6th International Workshop on Low Radioactivity Techniques, LRT 2017
CountryKorea, Republic of
CitySeoul
Period5/23/175/27/17

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Ito, S., Takaku, Y., Ikeda, M., & Kishimoto, Y. (2018). Determination of trace level thorium and uranium in high purity gadolinium sulfate using ICP-MS with solid-phase chromatographic extraction resins. In Low Radioactivity Techniques 2017, LRT 2017: Proceedings of the 6th International Workshop on Low Radioactivity Techniques (Vol. 1921). [030003] American Institute of Physics Inc.. https://doi.org/10.1063/1.5018990