@inproceedings{oai:repo.qst.go.jp:00085332,
 author = {Takakaze, Yui and Yasuoka, Yumi and Higuchi, Shoko and Matsumoto, Maho and Hosoda, Masahiro and Tokonami, Shinji and Iwaoka, Kazuki and Mukai, Takahiro and Kazuki, Iwaoka},
 book = {Proceedings of the 22nd workshop on environmental radioactivity},
 month = {Dec},
 note = {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},
 pages = {118--124},
 title = {Measurement of radon concentration in water using a radon-in-air monitor},
 volume = {KEK proceedings 2021-2},
 year = {2021}
}