Evaluation of a radon air monitor in the measurement of radon concentration in water in comparison with a liquid scintillation counter

Shoko Higuchi, Yuuki Kamishiro, Maki Ishihara, Yumi Yasuoka, Yasunori Mori, Masahiro Hosoda, Kazuki Iwaoka, Shinji Tokonami, Rikiya Takahashi, Miroslaw Janik, Jun Muto, Hiroyuki Nagahama, Takahiro Mukai

研究成果: Article査読

2 被引用数 (Scopus)

抄録

The World Health Organisation (WHO) recommends that the concentration of radon in water should be no more than 100 kBq m-3 (100 BqL-1) and the Codex Alimentarius Commission states that the limit of quantification (LOQ) of a method should be no more than one-fifth of this value. In this study, a degassing method with an RAD7 device was used to measure radon concentrations in water, compared to a liquid scintillation counter (LSC) method used as the reference, to investigate whether the numerical value of the LOQ of this method was more than 1/5 (20 kBq m-3) of 100 kBq m-3. The degassing method with leak prevention was shown to reach a target value of 20 kBq m-3 or less under a relative humidity of 6% or lower in the chamber of the RAD7 device. Accordingly, the RAD7 degassing method with leak prevention can be used to accurately measure radon concentrations in water within the guidance level set out by the WHO.

本文言語English
ページ(範囲)426-429
ページ数4
ジャーナルRadiation protection dosimetry
184
3-4
DOI
出版ステータスPublished - 2019 10月 1

ASJC Scopus subject areas

  • 放射線技術および超音波技術
  • 放射線
  • 放射線学、核医学およびイメージング
  • 公衆衛生学、環境および労働衛生

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