Classical and potential descriptions of 9Be + 28Si and 9Be + 40Ca elastic scattering cross sections at E(9Be) = 45 and 60 MeV

The elastic scattering angular distributions for 9Be + 28Si and 9Be + 40 0 Ca have been measured at 9Be bombarding energies of 45 and 60 over an angular range in which sigma/sigmasub(R) varied from 1 (i.e. Rutherford scattering) to values <.001. The measured cross sections are analyzed classically using Wegner plots and quantum mechanically using both an optical potential of Woods-Saxon form and a double folding potential with a realistic nucleon-nucleon interaction. 9Be appears to exhibit somewhat different behaviour from both the lighter projectiles such as p and α and from its heavier neighbours such as 12C and 16O