  Spontaneous fission of 252Cf and fusion-induced fission of 250Cf are
investigated within a multi-dimensional Langevin model. The potential-energy
surface is calculated in the macroscopic-microscopic LSD+Yukawa-folded approach
using the four-dimensional Fourier-over-Spheroid shape parametrization. The
dynamical evolution described by the Langevin equation is coupled to neutron
evaporation, thereby allowing for the possibility of multi-chance fission.
Charge equilibration and excitation-energy sharing between the fragments
emerging at scission are evaluated, and their de-excitation is finally
computed. The correlation between various observables, particularly the
isotopic properties of the fragments, is discussed and compared with the
experiment whenever available. The theoretical predictions are generally in
good agreement with the data.
