γ-Ray spectrometry of radon in water and the role of radon to representatively sample aquifers
| Autor: | A.K. Mohanty, R.J. de Meijer, P.P. Maleka, I.N. Hlatshwayo, N.A. Mlwilo, R. Lindsay, S.A. Talha, R. T. Newman |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Water Pollutants
Radioactive Borehole chemistry.chemical_element Radon Soil science Aquifer Radiation Dosage Mass spectrometry Sensitivity and Specificity South Africa Radiation Monitoring Soil Pollutants Radioactive Representative sampling Radioisotopes geography Radiation geography.geographical_feature_category Reproducibility of Results Sample (graphics) Spectrometry Gamma chemistry Environmental chemistry Environmental science γ ray spectrometry Hpge detector |
| Zdroj: | Applied Radiation and Isotopes. 66:1623-1626 |
| ISSN: | 0969-8043 |
| DOI: | 10.1016/j.apradiso.2007.12.016 |
| Popis: | Measurement of radon in water by gamma-ray spectrometry using a HPGe detector has been investigated to determine aquifer characteristics. The radon activity concentration is determined by taking the weighted average of the concentrations derived from gamma-ray lines associated with (214)Pb and (214)Bi decay. The role of accurate radon data to representatively sample aquifers was also investigated by studying a semi-cased borehole. A simplified physical model describing the change of radon concentration with the pumping time, reproduces the data and predicts the time for representative sampling of the aquifer. |
| Databáze: | OpenAIRE |
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