Nuclear Optical Model Analysis of Neutron Elastic Scattering for Calcium

A nuclear optical model calculation of neutron elastic scattering using five parameters has been made. Appropriate estimates of the effect of compound elastic scattering at low energies are included. Comparisons have been made with experimental data, and results for the parameters adopted are given for elastic scattering in the energy range from 0.734 to 18 Mev. Although reasonably good agreement between the calculation and experimental results have been obtained, there is a discrepancy between experiments below 2 Mev, and experi­ mental data is needed between 6 and 14 Mev. Both angular distributions and Legendre expansion coefficients for the total elastic scattering are given.