Elastic scattering of Kr84 by Pb208

Angular distributions for the elastic scattering of Kr84 by Pb208 at 494, 510, and 718 MeV have been measured. Fresnel, parametrized phase shift, and optical model analyses show that Coulomb deflection and surface absorption effects dominate. The optical model analysis shows that the results are sensitive to the nuclear potential only in the vicinity of the strong absorption radius, giving a value of the nuclear potential at this distance that is in agreement with a number of theoretical estimates. NUCLEAR REACTIONS Pb208(Kr84, Kr84), E=494,A 510,A andA 718 MeV; measured σ(θ); Fresnel, parametrized phase shift and optical model analyses.