A position sensitive neutron detector was used to measure the differential cross sections of 14.8 MeV (or 14.7 MeV) neutrons scattered from ${}_{}{}^{238}{}_{}{}^{}\mathrm{U}$, Pb, Ni, Fe, Cr, Al, and O between 2.5° and 16° and that of 12 MeV neutrons from ${}_{}{}^{238}{}_{}{}^{}\mathrm{U}$ and Fe. The data were corrected for neutron flux attenuation, multiple neutron scattering, and finite geometry with a Monte Carlo simulation. The angular distributions are analyzed with a spherical optical model or coupled channels model (code ecis79) and a set of global optical model parameters were obtained at ∼14.8 MeV neutron energy for mass number between 27 and 238. The measured and calculated results are compared and discussed.

• Received 6 May 1993

DOI:https://doi.org/10.1103/PhysRevC.48.1779