Elastic Cross Section for the Reactions 235U(n, n) and 238U(n, n) at Low Energies Using Woods-Saxon and Coulomb Potentials

Abstract

The elastic cross section for neutrons by Uranium atoms is calculated for the reactions 235U(n, n) and 238U(n, n) in the regime of low energies using Coulomb andWoods-Saxon potentials. The parameters used in the calculations were chosen by comparison with experimental data previously published by reducing chi-square. Using the same parameters in the equations the ratio 238U/235U is calculated. The results are shown next to the experimental data to illustrate the agreement of the model in the range of energies from 1.5 keV to 1.0 MeV .