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/m3.
Original language | English |
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Pages (from-to) | 418-424 |
Number of pages | 7 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 452 |
Issue number | 3-4 |
DOIs | |
Publication status | Published - 1999 |
Externally published | Yes |
Keywords
- Neutrino
- Radon
- Rn
- Super-Kamiokande
ASJC Scopus subject areas
- Nuclear and High Energy Physics