  The dependence of the transmission coefficient on the deformation, the
collective rotation and excitation energy of the compound nucleus emitting
light particles is introduced in the framework of Wei{\ss}kopf's evaporation
theory. The competition between fission and particle evaporation is treated by
a~Langevin equation for the fission variable coupled to the emission process.
Detailed calculations are presented on the decay of different Gd and Yb
isotopes at an excitation energy of about 250~MeV. These calculations
demonstrate the importance of the effects of nuclear deformation and of the
initial spin distribution on the evaporation.
