Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

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V. O. Zheltonozhsky, D. E. Myznikov, N. V. Kulich, A. M. Savrasov^*, V. I. Slisenko, D. P. Stratilat

Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

^*Corresponding author. E-mail address: asavrasov@kinr.kiev.ua

Abstract: For the first time at the WWR-M type reactor, the photoactivation method was employed to measure the activities of long-lived radionuclides generated in structural materials and concrete shielding, whose decay is not accompanied by gamma-ray emission. The results demonstrated that the activities of these radionuclides are well below the regulatory release limits. In addition, the activities of gamma-emitting radionuclides were evaluated, indicating that the activity of ⁶⁰Со in certain structural components significantly exceeds the maximum permissible concentration.

Keywords: WWR-M, photoactivation method, construction materials, activity, cobalt.

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