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Improvement of measuring methods and instrumentation concerning (222)Rn determination in drinking waters - RAD7 and
Ivana Stojković1, Branislava Tenjović2, Jovana Nikolov3
1University of Novi Sad, Faculty of Technical Sciences, Novi Sad, Serbia.
Abstract:
A procedure for the determination of (222)Rn in environmental water samples using liquid scintillation counting (LSC) was applied and optimized. A minimum detectable activity of 0.029Bql(-1) in a 20ml glass vial (10ml water sample mixed with 10ml of liquid scintillation cocktail) has been achieved during 300min of measurement time. The procedure was compared with RAD7 radon detector measurements. (226)Ra content in the water was determined by gamma-ray spectroscopy. Applications to drinking waters collected from public drinking fountains in the Vojvodina (Serbia) are presented with annual effective dose for ingestion and inhalation for adults calculated.
