  The properties of the kinetic energy spectra of light isotopes produced in
the breakup of a nuclear source and during the deexcitation of its products are
examined. The initial stage, at which the hot fragments are created, is modeled
by the Statistical Multifragmentation Model, whereas the Weisskopf-Ewing
evaporation treatment is adopted to describe the subsequent fragment deexcita-
tion, as they follow their classical trajectories dictated by the Coulomb
repulsion among them. The energy spectra obtained are compared to available
experimental data. The influence of the fusion cross-section entering into the
evaporation treatment is investigated and its influence on the qual- itative
aspects of the energy spectra turns out to be small. Although these aspects can
be fairly well described by the model, the underlying physics associated with
the quantitative discrepancies remains to be understood.
