Fission events in the 120 MeV¹²C+²³⁸U system

Abstract

Three recoil studies of the system 120 MeV "C + ='U have been performed, one measuring the cross section of 49 fission products, the second, the angular distribution of 33 of them, and the third, the differential range distribution of the same 33. Using the recoil velocity of the intermediate nucleus as a signature of the projectile-target interaction, the cross section, angular anisotropy, and kinetic energy measurements have been divided into complete and incomplete fusion contributions. About 30% of the cross section may be accounted for by incomplete fusion, most probably of an n-particle. Angular anisotropies are calculated for both complete and incomplete fusion components for each of the individual products. A method is introduced for the reconstruction of fission events based on the measured energies of individual products and is used to determine kinetic energy distributions in the two types of processes.

Mass resolved angular distribution inB10,CJohn1, Nijasure2, Kataria3 et al. 1995Phys. Rev. C151110View full textAdd to dashboardCite

“…On the same grounds, it can be expected that angular anisotropies of neutron rich products formed from transfer induced 6ssion should carry the signature of the process. This has already been revealed in the work of Todd et al [12], where a plot of angular anisotropies of Sb, Te, and I isotopes versus 1V'/Z ratio shows lower anisotropy for neutron rich products which are likely to originate from an intermediate nucleus with lower excitation energy.…”