PoS - Proceedings of Science
Volume 301 - 35th International Cosmic Ray Conference (ICRC2017) - Session Neutrino. NU-astrophysical neutrinos
Status of RI background reduction for SK-Gd
S. Ito* and  On behalf of the Super-Kamiokande Collaboration
Full text: pdf
Pre-published on: August 16, 2017
Published on: August 03, 2018
The Super Kamiokande-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$_2$(SO$_4$)$_3$ into a 50 kton of the SK water tank. In order to continue solar neutrino measurement with low energy threshold at $\sim$3.5 MeV, radioactive isotopes (RI) should be reduced before loading.
In this talk, the methods to measure RI in Gd$_2$(SO$_4$)$_3$ and the current status of RI background reduction will be presented.
DOI: https://doi.org/10.22323/1.301.1012
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