Evaluated empirical systematics of (n, nα) reaction cross-sections at 14 - 15 MeV incident energy

Abstract

In this study, the asymmetry parameter-included empirical equation proposed by Tel et al. has been applied for (n, nα) reaction at 14 -15 MeV energies. The free parameters of equation have been determined by fitting of experimental cross-section data. Even-even and odd-even nuclei classification have been made in order to taking into account of pairing effect on the (n, nα) reaction cross-sections. Excitation function calculations have been carried out for target nuclei such as 65Cu, 71Ga, 31P and 99Tc by (n, nα) reactions up to 30 MeV neutron induced energy. Comparisons have been made among available experimental data and results of cross-sections calculated by nuclear models with results of values calculated by empirical formulas. Determined relations are functional for the (n, nα) reaction cross-sections at 14 - 15 MeV incoming neutron energies. Acceptable harmonies have been seen between collected experimental data and modelled calculations.

Keywords

• empirical formulas
• asymmetry term
• (n
• nα) reactions
• cross-section systematics
• nuclear reaction codes.