Abstract
A ray-tracing model for studying ion cyclotron resonance heating at higher cyclotron harmonics in very hot large plasmas is presented. It includes the full hot dielectric tensor for bi-Maxwellian distribution functions with parallel drift retaining temperature effects to all orders and allows for non-Maxwellian distribution functions. The model only retaining first-order temperature corrections underestimates the electron damping on the Bernstein wave. Highly energetic tails efficiently absorb fast wave power at high cyclotron harmonics. Significant alpha -particle absorption is to be expected in D-heating D-T scenarios.
| Original language | English |
|---|---|
| Article number | 009 |
| Pages (from-to) | 1189-1206 |
| Number of pages | 18 |
| Journal | Plasma Physics and Controlled Fusion |
| Volume | 35 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 1993 |