Comparative analysis of the energy dependences of the induced fission times for the Pb-like and U-like nuclei obtained by the crystal blocking technique

Comparative analysis of the experimental data on the induced fission lifetimes for the Pb-like and U-like nuclei produced in the 208Pb + 28Si and 238U + 28Si reactions obtained by the crystal blocking technique was performed, within the dynamical approach based on Langevin equations taking into account light particle emission from the hot fissioning system. A discussion of the energy dependence of the time values for U-like nuclei allows to obtain information on the magnitude of nuclear viscosity