No abstract

No abstract

Neutron energy and angular distributions have been studied in coincidence with projectilelike fragments (PF) for quasielastic and deeply inelastic collisions of 160 on 64Ni at 7.5-12 MeV/u bombarding energy. The neutron yield can be explained assuming only two isotropically emitting sources: i) sequential emission from fully accelerated PF and ii) evaporation from fully accelerated targetlike fragments (TF). For Z=6 and Z=8 ejectiles known excited states in 13C and 170 could be identified. For oxygen, this suggests a direct excitation process, n pickup from the target. No significant evidence for preequilibrium neutron emission was found even at the highest bombarding energy. The TF temperatures and neutron multiplicities are consistent with the assumption that thermal equilibrium was reached during the binary reaction.

No abstract

No abstract