Consultant at the Service de Physique Nucleaire

Some improvements in ECIS88 like the use of expansion of the potentials in term of Bessel functions lead to ECIS94 and to write the Notes on ECIS94 before I had to retire on the 1/9/1994. However, on the suggestion of Arjan Koning, the code was modi ed to deal with continuum for compound nucleus calculations. This point, existing in ABAREX was not in ANLECIS. Now, ECIS95 should do the same kind of computation as ABAREX, but in the Coupled Channel formalism. Further work has been done this year by introducing energy dependent potentials de ned by Mahaux' dispersion relations. This required more changes than the previous step and gives ECIS96. Some other additions should be done for experiments with exotic beams. Such beams are usually produced by extraction at 0 degrees after a reaction, which produces tensor polarisations very large for exotic nuclei with high spins. There are tensor polarisation e ects on the total scattering cross-sections and on the total cross-section, even if they are generally too small to be measured.