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Abstract
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One-dimensional Langevin equations were applied to study the fission dynamics of compound nucleus
200Pb formed in heavy ion-induced fusion reactions in an intermediate range of excitation energies. A
modified wall and window dissipation with a reduction coefficient, ks, has been used in the Langevin
equations. The average pre-fission multiplicities of neutrons, light charged particles and fission probabilities
were calculated for 200Pb and results compared with the experimental data. It was shown that the
results of the calculations are in good agreement with the experimental data of neutron and charged particles
(p and alphas) multiplicities and fission probabilities by using values of ks in the range
0.27 6 ks 6 0.48.
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