Charge distribution in disintegration of uranium isotopes

Charge distributions of the fragments emitted from the disintegration of uranium isotopes 235U and 238U at various excitation energies up to 10 MeV per nucleon were investigated on the basis of a statistical approach. The calculations reproduce the fundamental properties of the fission at low excitation energies for E* ≤ 0.5 MeV/A. The variation of the average value of the maximal charge, < Zmax >, of the emitted fragments with excitation energy is determined.