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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N. R. Dzysiuk¹, I. M. Kadenko¹, V. K. Maydanyuk¹, G. I. Primenko¹, A. M. Berlizov<sup>2

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

Abstract: The cross section values for nuclear reactions ⁷⁴Ge(n, α)^71mZn, ⁷⁰Ge(n, p)⁷⁰Ga, ⁷⁶Ge(n,2n)^75mGe, ⁷⁰Ge(n,2n)⁶⁹Ge have been measured for neutron energy 14.53 MeV, and of reaction ⁷²Ge(n, 2n)⁷¹Ge for energies 13.32, 13.69, 14.35, 14.74 MeV as well. Measurements have been carried out with neutron activation method. The samples in the form of disks of natural germanium have been irradiated with DT-neutrons. Instrumental gamma-spectra of activation products have been measured with two HPGe spectrometers. The corrections for neutron flux instability, real geometry of the experiment, the effect of gamma-ray true coincidence summing during activation product spectra measurements, and the effect of self-absorption of gamma-rays in the sample were calculated. Average neutron energy in the samples has been determined experimentally with Zr/Nb method.

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