Dependence of Neutron Total Cross Sections on Energy for 100 < En < 500 MeV and Mass Number for 7 < A< 238

Two recent measurement programs have yielded an extensive budy of neutron total crosssection data for a number of targets at energies up to 500 MeV. Recently, it has been shown that the simple Ramsauer model provides a good description of the data up to 120 MeV. The parameterization developed in this energy region did not do as well above this energy. The data in the region 100