Determination of Trace Level Thorium and Uranium in High Purity Gadolinium Sulfate Using ICP-MS with Solid-Phase Chromatographic Extraction Resins

被引:0
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作者
Ito, S. [1 ]
Takaku, Y. [2 ]
Ikeda, M. [3 ,4 ]
Kishimoto, Y. [3 ,4 ]
机构
[1] Okayama Univ, Fac Sci, Okayama 7008530, Japan
[2] Inst Environm Sci, Dept Radioecol, Aomori 0393212, Japan
[3] Univ Tokyo, Inst Cosm Ray Res, Kamioka Observ, Kamioka, Gifu 5061205, Japan
[4] Univ Tokyo, Kavli Inst Phys & Math Universe WPI, Kashiwa, Chiba 2778582, Japan
关键词
D O I
10.1063/1.5018990
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
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 Gd-2(SO4)(3) into a 50 kton of the SK water tank. In order to continue solar neutrino measurement with low energy threshold at similar to 3.5 MeV, main radioactive contamination, U and Th in Gd-2(SO4)(3), should be purified before loading. We developed solid-phase extraction technique to measure low concentration of U and Th in Gd-2(SO4)(3) by ICP-MS. The extraction technique and current status will be presented.
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页数:5
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