  Nuclear particle production from peripheral to central events is presented.
N/Z gradient between projectile and target is studied using the fact that two
reactions have the same projectile+target N/Z and so the same neutron to proton
ratio for the combined system. Inclusive data study in the forward part of the
center of mass indicates that N/Z equilibration between the projectile-like and
the target-like is achieved for central collisions. Particles are also produced
from mid-rapidity region. 3He mean pre-equilibrium character is evidenced and
6He production at mid-rapidity implies a neutron enrichment phenomenon of the
projectile target interacting zone.
