On resonance absorption and continuum damping
The absorption of power is studied with fluid and gyrokinetic plasma models, when two Alfvén or ion-ion hybrid resonances provide for a weak damping in a partially standing wavefield. Examples chosen in slab and toroidal geometry show that the fluid predictions based on resonance absorption are generally very different from the Landau damping of mode-converted slow waves. They in particular suggest that the continuum damping of toroidal Alfvén eigenmodes (TAE) and the power deposition profiles obtained in the ion-cyclotron range of frequencies (ICRF) using fluid plasma models are very misleading.
Bibliographic Reference: Article: Physics Review Letters (1997)
Record Number: 199711487 / Last updated on: 1997-11-18
Original language: en
Available languages: en