The effect of the Alfven resonance on the power deposition in fast wave current drive scenarios of ITER and possible efficiency enhancement of lower hybrid (LH) current drive by alpha particles are investigated. The mode conversion from the fast wave to the slow wave is found to remain smaller than 20%. Monte Carlo simulations show that for ITER parameters the power transfer from the alpha particles to the LH wave can be 15% of the alpha power if the LH waves can penetrate to the flux surface ρ/α = 0.5.
|Conference||15th International Conference on Plasma Physics and Controlled Nuclear Fusion Research|
|Period||26/09/94 → 1/10/94|