Evaluation of Optical Model Potential using Neutron Induced Cross Section Reactions for Spherical Uranium-235 Isotope up to 20MeV

Iman Tarik AL-Alawy, Ronak Ikram Ali


The evaluation is based mainly on the calculations of the nuclear optical model potential and the relevant parameters are collected and selected from References Input Parameter Library (RIPL) which is being developed under the international project coordinated by the International Atomic Energy Agency (IAEA).  The analyzing of a complete energy range has been done starting from threshold energy for each reaction.  The cross sections are reproduced in fine steps of incident neutron energy with 0.01MeV intervals with their corresponding errors.   The recommended cross sections for available experimental data taken from EXFOR library have been calculated for all the considered neutron induced reactions for U-235 isotope.  The calculated results are analyzed and compared with the experimental data.  The optimized optical potential model parameters give a very good agreement with the experimental data over the energy range 0.001-20MeV for neutron induced cross section reactions (n,f), (n,tot), (n,el), (n,inl), (n,2n), (n,3n), and (n,γ)  for spherical U-235 target element.

Keywords: EXFOR nuclear data, induced neutron reactions, 20MeV, recommended cross section, optical model potential.

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ISSN (Paper)2224-719X ISSN (Online)2225-0638

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