PREEQUILIBRIUM ALPHA AND NUCLEON EMISSION IN CO-59 (ALPHA,Z-ALPHA-YPXN) REACTIONS

Pre-equilibrium alpha and nucleon emission were studied for the excita tion functions on target element cobalt up to 120 MeV employing the st acked-foil activation technique. Alpha induced reactions for the produ ction of a few radionuclides Co-60,Co-58-56, Mn54-52 Cr-51, Fe-59, Ni- 57,Ni-56 were measured. Most of these radionuclides are produced by on e or two alpha emissions and a few by nucleon emission. The excitation functions were compared with semi classical models, like the INDEX an d the recently developed COMPLET which takes into account the pre-equi librium alpha particle and multinucleon emission. In general, the shap es of the excitation functions were rather fairly reproduced with the COMPLET model and it gives a better agreement than the INDEX model for all the reactions studied in the present work.