Author(s) |
Pandey, J.; Pandey, B.; Pal, A.; Suryanarayana, S. V.; Santra, S.; Nayak, B. K.; Mirgule, E. T.; Saxena, A.; Chattopadhyay, D.; Kundu, A.; Desai, V. V.; Parihari, A.; Mohanto, G.; Sarkar, D.; Rout, P. C.; Srinivasan, B.; Mahata, K.; Roy, B. J.; De, S.; Agrawal, H. M. (NPD)
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The 59Ni(n, xp) reaction cross sections have been measured following the surrogate reaction ratio method in the equivalent neutron energy range of 11.9–15.8 MeV by populating the compound nucleus 60Ni∗ through transfer reaction 56Fe(6Li, d) at Elab = 35.9 MeV. The 59Co(6Li, α)61Ni∗ transfer reaction at Elab = 40.5 MeV has been used as the reference reaction which is the surrogate of 60Ni(n, xp) reaction populating the compound nucleus 61Ni∗. The proton decay probabilities have been determined by measuring evaporated protons at backward angles in coincidence with projectile like fragments (PLFs, either d or α) detected around grazing angles. The cross sections for the reference reaction 60Ni(n, xp) are taken from JENDL-4.0 library, which closely reproduce the available experimental data. The cross sections for the desired 59Ni(n, xp) reaction so obtained compare well with the nuclear-reactions-model code TALYS-1.8 using microscopic level densities. The present experimental data are consistent with the evaluated data library of ROSFOND-2015 but not with TENDL-2015 and ENDF/B-VIII, indicating the need of new evaluations for this reaction of importance to fusion technology. |