Elastic scattering of Be-7+Si-28 was studied at several near barrier
energies for probing the energy dependence of the optical potential. Our
analysis at 17.2 MeV will be presented in this article and discussed, in
terms of Continuum Coupled Channel Calculations (CDCC). This research is
part of a long term plan concerning the energy dependence of the optical
potential for weakly bound projectiles, at near barrier energies and for
probing the potential threshold anomaly. The experiment took place at
the EXOTIC facility - Laboratori Nationali di Legnaro (LNL), and refers
to an angular distribution measurement, using the detector array EXPADES
(Exotic Particle Detection System). Results at 9 MeV (Rutherford region)
were also analyzed and were used for estimating the solid angle. Our
analysis for other energies is under process
