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. A. Plujko^1,2,*, O. M. Gorbachenko¹, K. M. Solodovnyk¹, V. M. Petrenko<sup>1

1</sup> Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
² Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

^*Corresponding author. E-mail address: plujko@gmail.com

Abstract: The average gamma-ray spectrum of ¹¹⁴Cd after thermal neutron capture in ¹¹³Cd was evaluated in units of mb/MeV. Two approaches are considered for estimation of the average gamma-ray spectrum with normalization of the experimental data: mean spectra for all gamma-energies were found by averaging frequency polygon for experimental data histogram, and mean spectra were estimated as the combination of theoretical values at low gamma-ray energies and averaging experimental data in high-energy range. The experimental spectra were evaluated from the gamma-intensities presented by Mheemeed et al. [A. Mheemeed et al. Nucl. Phys. A 412 (1984) 113] and Belgya et al. [T. Belgya et al. EPJ Web of Conf. 146 (2017) 05009]. They were normalized to the average theoretical spectrum which was calculated using EMPIRE and TALYS codes. The procedure of normalization of the high-energy part of the spectrum was described. Estimated gamma-spectra for ¹¹³Cd(n, {xγ}) reaction induced by thermal neutrons were presented.

Keywords: nuclear reaction ¹¹³Cd(n, {xγ}), thermal neutrons, average gamma-ray spectra evaluation. calculations by EMPIRE and TALYS codes, scaling approximation.

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