Abstract
Methods have been developed for the rapid determination of the total activity of α-emitting radionuclides in water coolant. The samples with a volume of 0.05–2.5 dm3 are filtered at a flow rate of 2–2.5 dm3/h through a system of membranes. The first membrane is a mechanical filter for the separation of suspensions, the second one is impregnated with manganese dioxide which is intended for the deposition of actinoids in an ionic state. The detection limit for a 2.5 l sample measured with a low-background alpha-radiometer is equal to 0.037 Bq. The measurement error does not exceed 30% at a confidence level of 0.95 over a determined concentration range from 0.037 to 3.7·105 Bq/l.
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Yepimakhov, V.N., Glushkov, S.V. Determination of U, Pu, Am and Cm in water coolant of nuclear power plants using membranes impregnated with hydrated manganese dioxide. J Radioanal Nucl Chem 232, 163–166 (1998). https://doi.org/10.1007/BF02383734
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DOI: https://doi.org/10.1007/BF02383734