Calibration experiments for radon in drinking water measurements using portable-type electrostatic-collection radon monitors.
Radiat Prot Dosimetry
; 199(18): 2203-2206, 2023 Nov 02.
Article
em En
| MEDLINE
| ID: mdl-37935002
ABSTRACT
Portable-type electrostatic-collection radon monitors (RAD7) are often used for in-situ measurements of radon in water. In this study, we evaluated the calibration factors and their uncertainties for two RAD7 monitors based on comparative measurements with the liquid scintillation counting method. In the first experiment, we found that both RAD7 monitors had relatively large uncertainties due to leakage of radon gas that bubbled from the gaps between the lids of the desiccant container and the glass vial. Therefore, for the second experiment, these gaps were closed as much as possible using parafilm and clay, respectively. As a result, the relative uncertainties for both RAD7 monitors were significantly decreased. Furthermore, we collected spring water samples to confirm the reliability of radon concentrations. After closing the leakage point, the uncertainty of radon concentrations in spring water we measured using the typical protocol of the RAD7 were significantly lower, which improves the measurement.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Água Potável
/
Monitoramento de Radiação
/
Radônio
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article