Role of nuclear dissipation and entrance channel mass asymmetry in pre-scission neutron multiplicity enhancement in fusion-fission reactions
Citations Over TimeTop 10% of 2008 papers
Abstract
Pre-scission neutron multiplicities are measured for ${}^{12}\mathrm{C} + {}^{204}\mathrm{Pb}$ and ${}^{19}\mathrm{F} + {}^{197}\mathrm{Au}$ reactions at laboratory energies of 75--95 MeV for the $^{12}\mathrm{C}$ beam and 98--118 MeV for the $^{19}\mathrm{F}$ beam. The chosen projectile-target combinations in the present study lie on either side of the Businaro-Gallone mass asymmetry (${\ensuremath{\alpha}}_{\mathrm{BG}}$) and populate the $^{216}\mathrm{Ra}$ compound nucleus. The dissipation strength is deduced after comparing the experimentally measured neutron yield with the statistical model predictions which contains the nuclear viscosity as a free parameter. Present results demonstrate the combined effects of entrance channel mass asymmetry and the dissipative property of nuclear matter on the pre-scission neutron multiplicity in fusion-fission reactions.
Related Papers
- → Influence of pre-fission particle emission on fragment angular distributions studied forPb208(16O,f)(1992)84 cited
- → Neutron emission as a clock and thermometer to probe the dynamics of fusion-fission and quasi-fission(1993)47 cited
- → Influence of pre-fission neutron emission on fission fragment angular distribution for the system209Bi +16O(1994)11 cited
- → Fission fragment configurations at the scission point of233U,235U and239Pu(nth,f)(1999)
- → The most compact scission configuration of fragments from low energy fission of U 234 and U 236(2008)