  Direct coupling of the fast magnetosonic wave to the electrons has been
studied on the tokamak TORE SUPRA. Preliminary experiments were dedicated to
optimise the scenario for Fast Wave Electron Heating (FWEH) and Current Drive
(FWCD). In a first part, thermal kinetic and diamagnetic energy are compared
when fast wave is applied to the plasma in two different regimes: 1/ the
minority hydrogen heating scenario (ICRH), 2/ the direct electron damping.
Effects of ion resonant layers, marginally present in the plasma in the later
regime (FWEH), is then presented and discussed.
