SUPERASYMMETRIC FISSION AT INTERMEDIATE-ENERGY AND PRODUCTION OF NEUTRON-RICH NUCLEI WITH A-LESS-THAN-80

The yields of neutron-rich Ni, Cu, Zn, Ga and Ge-isotopes were measure d in 25 MeV proton induced fission of U-238 using the ion guide-based isotope separator technique. The results indicate enhancement for supe rasymmetric mass division at intermediate excitation energy of the fis sioning nucleus and show the potential of this reaction for the produc tion of neutron-rich exotic nuclei around Z = 28. (C) 1997 Elsevier Sc ience B.V.