Nuclear Reaction Mechanisms of Neutron Induced Fission of 237Np Nucleus

Proceedings of ‏The 10th International Conference on Research in Science and Technology

Year: 2020


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Nuclear Reaction Mechanisms of Neutron Induced Fission of 237Np Nucleus

Cristiana Oprea, M. Ayaz Ahmad, Alexandru Ioan Oprea,Jalal H. Baker, Naima Amrani



For a few years at FLNP, JINR Dubna has already started new prospects for development of new neutrons facilities that will replace the IBR-2 neutron pulsed research reactor, which will finish its activities in 2032 year. Some of the agreed projects are using fission process induced by neutrons on neptunium based fuels. In the present research the neutron fission process on 237Np nucleus was investigated. Various parameters during the neutron induced fission of 237Np nucleus such as; fission cross-section, mass distributions, prompt neutrons emissions, isotopes production and neutrons spectra, were analyzed. The evaluations of the above observables were done by using TALYS – 9.1 software for incident neutron energy ranging from 0.4 MeV up to 25 MeV. The exact value of cross-section was measured as 5 – 5.5 MeV in the present work, whereas from literature, it was found up to 10 MeV. For neutrons spectra, a separation of the contribution of different nuclear reaction mechanisms was obtained. Some important yields and cross-section production of isotopes have been recorded and were found within good agreement with literature data.

Keywords: neutron fission, cross-sections, fission yields, nuclear reaction mechanisms, isotopes.