Measurement of the radon concentration in purified water in the Super-Kamiokande IV detector

  title={Measurement of the radon concentration in purified water in the Super-Kamiokande IV detector},
  author={Yuuki Nakano and Tomonori Hokama and M. Matsubara and M. Miwa and Masayuki Nakahata and Tohru Nakamura and Hiroyuki Sekiya and Y. Takeuchi and Shigeki Tasaka and R. A. Wendell},
  journal={Nuclear Instruments \& Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment},
  • Y. Nakano, T. Hokama, +7 authors R. Wendell
  • Published 9 October 2019
  • Physics
  • Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
Abstract The radioactive noble gas radon can be a serious background source in the underground particle physics experiments studying processes that deposit energy comparable to its decay products. Low energy solar neutrino measurements at Super-Kamiokande suffer from these backgrounds and therefore require precise characterization of the radon concentration in the detector’s ultra-pure water. For this purpose, we have developed a measurement system consisting of a radon extraction column, a… 
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