Abstract
In underground particle physics experiments, the radioactive noble gas ${222}$Rn generated from the decay chain of the uranium series could be a serious background source. We have been developing high-sensitivity radon detectors to assay radon in the Kamioka underground laboratory. In order to achieve a further low background level, we developed a new radon detector with better hermeticity. The high-voltage dependence and humidity dependence of the detection efficiencies were obtained through our calibration systems. The background level of the new radon detector was also measured.
Original language | English |
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Article number | 033H01 |
Journal | Progress of Theoretical and Experimental Physics |
Volume | 2015 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2014 Nov 7 |
Externally published | Yes |
Keywords
- H20
ASJC Scopus subject areas
- Physics and Astronomy(all)