Use of the Sorben-Tec system for rapid dosimetric evaluation of 222 Rn level in drinking waterстатья
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Дата последнего поиска статьи во внешних источниках: 11 ноября 2019 г.
Аннотация:The Sorben-Tec system was tested for rapid dosimetric evaluation of 222 Rn level in drinking water in domestic conditions using a dosimeter of beta radiometer as a measurement equipment. It was shown that the method is cheap, rapid and very simple, therefore it can be used by population for rapid radiation safety assessment of drinking water. The sorption-active Sorben-Tec system contains iron hexacyanoferrate allowing for separation of approximately 40% of both 214 Pb and 214 Bi, the short-lived decay products of 222 Rn from 5 L water sample. It was assessed that the Sorben-Tec system provides detection limits of radon in 5 L water samples of 35–40 and 10 Bq L −1 for dosimetric and radiometric measurements respectively. The total time consumption of analysis does not exceed 1 h excluding the time for 214 Pb and 214 Bi ingrowth in the water sample (min. 3 h). Due to an insignificant sorption of radon, it is possible to reuse spent Sorben-Tec system again 3–4 h after previous analysis.