Radon determination by activated charcoal adsorption and liquid scintillation measurement |
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Authors: | A C Canoba F O López A A Oliveira |
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Institution: | (1) Environmental Studies Division, Nuclear Regulatory Authority, Avenida Del Libertador 8250, (1429) Buenos Aires, Argentina |
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Abstract: | A passive diffusion method for the determination of radon concentration has been optimised and calibrated. The device consists
of a scintillation vial containing activated charcoal, a diffusion barrier and a desiccant agent. The response to diverse
atmospheric humidity and variable exposure intervals was studied. The result is a detector independent of atmospheric humidity
till 7 days of exposure. The method was compared with electret detectors (US EPA) with very satisfactory results. The advantages
of this method are its simplicity, low cost, low detection limit, the total automatization of the measurement and its total
independence of humidity to measure in a wide range of radon concentrations. |
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Keywords: | |
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