⁵ He Emission in Neutron-Induced ¹⁰ B Reactions

Abstract

In n + 10 B reactions, 5 He cluster emission has been discussed with the updated level scheme and the new optical model parameters. In this paper the reaction channels related to 5 He emission are listed in detail. By using the new reaction model for light nuclei, the double-differential cross sections of total outgoing neutrons for n + 10 B reactions at En = 14.2 MeV have been calculated, and the results agree fairly well with the measurements. Particularly, in the energy-angular spectra the contribution from the 5 He-emission to the total outgoing neutron double-differential cross sections has also been analyzed, and the partial energy-angular spectra of 60 • at En = 14.2 MeV have been given. The calculated results indicate that once the 5 He emission is taken into account, the fitting with the double-differential measurements of total outgoing neutrons at the low energy region could be improved. Therefore, to consider the 5 He emission properly in the reaction processes of light nuclei is necessary.