On resonance absorption and continuum damping
The absorption of power is studied with fluid and gyrokinetic plasma models, when Alfven resonance provide for a weak damping in a partially standing wave field. 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 Alfven eigenmodes (TAE) and the power deposition profiles obtained in the ion-cyclotron range of frequencies (ICRF) using fluid plasma models can be very misleading.
Bibliographic Reference: An article published in: Physics of Plasmas. Vol.5, No.11, (1998) pp.3801-3805
Record Number: 200013668 / Last updated on: 2001-09-18
Original language: en
Available languages: en