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. Zheltonozhsky¹, D. E. Myznikov¹, A. M. Savrasov^1,*, V. I. Slisenko¹, M. D. Bondarkov<sup>2

1</sup> Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine
² State Scientific and Research Institution "Chornobyl Centre for Nuclear Safety, Radioactive Waste, and Radioecology", Slavutych, Ukraine

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

Abstract: The beta- and gamma-spectra of samples of radioactive graphite were measured from the 2nd Unit of ChNPP irradiated by bremsstrahlung gamma-beam with an end-point energy of 18 MeV. Using experimental and passport data, the mass ratio of chlorine and cobalt was determined. From the obtained data and the measured activity of ⁶⁰Co in the studied samples, a method for determining the ³⁶Cl activity was developed.

Keywords: flux-weighted average yields, photoactivation method, gamma-spectrometry, chlorine, cobalt.

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