量研学術機関リポジトリ「QST-Repository」は、国立研究開発法人 量子科学技術研究開発機構に所属する職員等が生み出した学術成果（学会誌発表論文、学会発表、研究開発報告書、特許等）を集積しインターネット上で広く公開するサービスです。 Welcome to QST-Repository where we accumulates and discloses the academic research results(Journal Publications, Conference presentation, Research and Development Report, Patent, etc.) of the members of National Institutes for Quantum Science and Technology.
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The World Health Organization recommends that the radon concentration in water should be no more than 100 Bq L−1 as the WHO guideline value. In this study, two types of degassing systems, i.e. RAD H2O and AquaKIT, respectively, connecting to a radon-in-air monitor were applied to measure radon concentrations in water, and this technique was compared to a liquid scintillation counter method as the reference. In order to judge whether RAD7 with those two degassing systems were applicable as a screening method, the criterion was investigated. The two degassing methods were found to be effective as the screening method with the WHO guideline value. Moreover, a system whose screening test value is closer to the guideline value is more effective as a screening device. The screening values of RAD H2O and AquaKIT were 86 and 92 Bq L−1, respectively. We conclude that the AquaKIT can be recommended as the degassing system when performing the degassing method
雑誌名
Proceedings of the 22nd workshop on environmental radioactivity
Measurement of radon concentration in water using a radon-in-air monitor
