ELECTRON HEATING AND CURRENT DRIVE BY MODE CONVERTED SLOW WAVES

An approach to obtaining efficient single-pass-mode conversion at high parallel wave number from the fast magnetosonic wave to the slow ion Bernstein wave, in a two-ion species tokamak plasma, is described. The intent is to produce localized electron heating or current drive via the mode-converted slow wave. In particular, this technique can be ada pted to off-axis current drive for current profile control. Modeling f or the case of deuterium-tritium plasmas in TFTR is presented.