Abstract
Experimental results are presented to substantiate conditions and modes of the process of deactivation of materials and articles to remove the surface α-, and γ-radioactive contamination. Compositions of a deactivating solution based on a mixture of nitric and phosphoric acids with addition of divalent silver, which enable a 102–103-fold decrease in the surface radioactive contamination in one deactivation cycle at room temperature. A scheme of silver regeneration for its repeated use was developed. The scheme provides a silver yield of about 95% with a ~105 coefficient of purification to remove radioactive isotopes.
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Translated from Zhurnal Prikladnoi Khimii, No. 1, pp. 75–79, December, 2020 https://doi.org/10.31857/S0033831121010111
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Erin, E.A., Momotov, V.N. & Volkov, A.Y. Deactivation of Materials and Articles in the Presence of Silver(II). Radiochemistry 63, 72–76 (2021). https://doi.org/10.1134/S1066362221010112
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DOI: https://doi.org/10.1134/S1066362221010112