EFFECTS OF SHELL STRUCTURE AND N Z RATIO OF A PROJECTILE ON THE EXCITATION-ENERGY DISTRIBUTION BETWEEN INTERACTING NUCLEI IN DEEP-INELASTICCOLLISIONS/

Deep inelastic collisions of stable and radioactive projectiles with h eavy targets are considered. The effects of shell structure and the N/ Z ratio of a projectile on the excitation energy distribution between interacting nuclei, and on the centroid position and variance of the c harge (mass) distribution of binary reaction products are explored. Th e role of nucleon exchange and particle-hole excitation mechanisms in the transformation of relative motion kinetic energy into the internal excitation energy of nuclei is studied. It is shown that a change in the mass number of the projectile nucleus causes a sufficient change b oth in the sharing of the excitation energy between fragments and in t he charge (mass) distribution of reaction products. The nucleon exchan ge process between interacting nuclei is the main mechanism of dissipa tion.