Abstract
Elastic Scattering of 16O ions on 9Be has been measured at energies near and above the Coulomb barrier. Angular distributions were calculated with the optical model with Woods-Saxon potential. Igo ambiguities were shown in these analyses. This suggests that there will be a strong absorption situation in the scattering of 16O on 9Be in this energy region. Strong absorption radii were extracted with consideration of the nuclear interaction at the surface.