Measurement of radon concentrations at Super-Kamiokande

Abstract

Radioactivity from radon is a major background for observing solar neutrinos at Super-Kamiokande. In this paper, we describe the measurement of radon concentrations at Super-Kamiokande, the method of radon reduction, and the radon monitoring system. The measurement shows that the current low-energy event rate between 5.0 MeV and 6.5 MeV implies a radon concentration in the Super-Kamiokande water of less than 1.4 mBq/m${}^3$.

11 pages, 4 figures

References in corpus (1)

• Measurements of the Solar Neutrino Flux from Super-Kamiokande's First 300 Days

Cited by in corpus (8)

• Solar neutrino measurements in Super-Kamiokande-I
• Solar neutrino measurements in Super-Kamiokande-II
• DUNE as the Next-Generation Solar Neutrino Experiment
• Developing the MeV potential of DUNE: Detailed considerations of muon-induced spallation and other backgrounds
• Measurement of Radon Concentration in Super-Kamiokande's Buffer Gas
• Sensitivity of Super-Kamiokande with Gadolinium to Low Energy Anti-neutrinos from Pre-supernova Emission
• Measurement of the radon concentration in purified water in the Super-Kamiokande IV detector
• Study of radon removal performance of silver-ion exchanged zeolite from air for underground experiments