Assay of 222Rn in water samples by a modified integral counting method

Yuko Murase; Yoshio Homma; Isao Murakami; Keiko Handa

doi:10.1016/S0969-8043(97)10008-2

Assay of ²²²Rn in water samples by a modified integral counting method

Yuko Murase, Yoshio Homma, Isao Murakami, Keiko Handa

School of Pharmacy

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

²²²Rn activity concentrations in water collected from 163 private wells and 14 springs in Tokyo were measured with a liquid scintillation spectrometer using a modified integral counting method. The activity concentrations of ²²²Rn range from 0.2 to 22.9 Bq/L and average 4.8 Bq/L. The errors due to the air luminescence counts and the interferences from ²²⁰Rn and ²¹⁹Rn are discussed and evaluated. ²²²Rn samples of 0.2 Bq/L can be assayed within an overall uncertainty of 3.1%. The liquid scintillation method involving agitation of the sample water directly with a liquid scintillation cocktail was compared with the present method and evaluated.

Original language	English
Pages (from-to)	861-865
Number of pages	5
Journal	Applied Radiation and Isotopes
Volume	49
Issue number	7
DOIs	https://doi.org/10.1016/S0969-8043(97)10008-2
Publication status	Published - 1998 Jul

ASJC Scopus subject areas

Radiation

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10.1016/S0969-8043(97)10008-2

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@article{955686ab72254e718bff66f54c97bc91,

title = "Assay of 222Rn in water samples by a modified integral counting method",

abstract = "222Rn activity concentrations in water collected from 163 private wells and 14 springs in Tokyo were measured with a liquid scintillation spectrometer using a modified integral counting method. The activity concentrations of 222Rn range from 0.2 to 22.9 Bq/L and average 4.8 Bq/L. The errors due to the air luminescence counts and the interferences from 220Rn and 219Rn are discussed and evaluated. 222Rn samples of 0.2 Bq/L can be assayed within an overall uncertainty of 3.1%. The liquid scintillation method involving agitation of the sample water directly with a liquid scintillation cocktail was compared with the present method and evaluated.",

author = "Yuko Murase and Yoshio Homma and Isao Murakami and Keiko Handa",

note = "Funding Information: Acknowledgements--We would like to thank students of our college for their assistance in some of the experimental work. This work was supported in part by the Science Research Promotion Fund of Japan Private School Promotion Foundation.",

year = "1998",

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doi = "10.1016/S0969-8043(97)10008-2",

language = "English",

volume = "49",

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journal = "Applied Radiation and Isotopes",

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T1 - Assay of 222Rn in water samples by a modified integral counting method

AU - Murase, Yuko

AU - Homma, Yoshio

AU - Murakami, Isao

AU - Handa, Keiko

N1 - Funding Information: Acknowledgements--We would like to thank students of our college for their assistance in some of the experimental work. This work was supported in part by the Science Research Promotion Fund of Japan Private School Promotion Foundation.

PY - 1998/7

Y1 - 1998/7

N2 - 222Rn activity concentrations in water collected from 163 private wells and 14 springs in Tokyo were measured with a liquid scintillation spectrometer using a modified integral counting method. The activity concentrations of 222Rn range from 0.2 to 22.9 Bq/L and average 4.8 Bq/L. The errors due to the air luminescence counts and the interferences from 220Rn and 219Rn are discussed and evaluated. 222Rn samples of 0.2 Bq/L can be assayed within an overall uncertainty of 3.1%. The liquid scintillation method involving agitation of the sample water directly with a liquid scintillation cocktail was compared with the present method and evaluated.

AB - 222Rn activity concentrations in water collected from 163 private wells and 14 springs in Tokyo were measured with a liquid scintillation spectrometer using a modified integral counting method. The activity concentrations of 222Rn range from 0.2 to 22.9 Bq/L and average 4.8 Bq/L. The errors due to the air luminescence counts and the interferences from 220Rn and 219Rn are discussed and evaluated. 222Rn samples of 0.2 Bq/L can be assayed within an overall uncertainty of 3.1%. The liquid scintillation method involving agitation of the sample water directly with a liquid scintillation cocktail was compared with the present method and evaluated.

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JO - Applied Radiation and Isotopes

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ER -

Assay of ²²²Rn in water samples by a modified integral counting method

Abstract

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