Interaction Time Study of the Dissipative Process in the Reaction ¹⁹F+⁴⁵Sc

Excitation functions have been measured for the dissipative products of 4 ≤ Z ≤ 12 in ¹⁹F⁸⁺+⁴⁵Sc reaction from 102 to 108MeV by a step of 300keV at θ_l = 42°. The energy coherence widths have been extracted and the dinuclear system lifetimes of the order of 10^-21 s have been deduced by analysing the cross section fluctuations.