function (called Thomas-Fermi here) approaches at deformations close to the spherical shape ($q=0.73$) and to the scission configuration ($q=2.01$). Fig. 4 gives a comparison of the neutron and proton emission rates in the two evaporation models obtained for different values of a collective coordinate $q$ related to nuclear elongation [@BMR96] for the system $^{188}$Pt ($E^* \!\!=\!\! 100$ MeV, $L \!\!=\!\! 0 \hbar$) [@SPS01]. Both models yield emission rates that are reasonably close for both types of particles for all elongations except for an increase of the distribution function approach relative to the Weisskopf prediction in the case of protons for very large deformations. One should also notice the deformation dependence of the proton emission width $\Gamma_p$ that can be easily understood if one keeps in mind that the Coulomb barrier which charged particles have to overcome depends on the direction of the emission (an emission along the tips is favored compared to an emission perpendicular to the symmetry axis).

The determination of the phase-space distribution function is quite intricate in the case of $\alpha$-particles which are composite particles. We are presently working on a model which determines the $\alpha$-particle distribution function $f_\alpha$ through those of two correlated protons and neutrons 