Improvement of plasma confinement due to electron Landau damping in tokamaks
Abstract
It is shown that the E vector sub rf x B vector sub 0 theta drift for resonant electrons in tokamaks does not cancel and forms an inward flux during rf heating with a travelling wave type spectrum when an exact treatment of Landau damping in the presence of the magnetic field is performed as an initial value problem, where E vector sub rf is rf electric field and B vector sub 0 theta is poloidal magnetic field. This effect could be the basis of the phenomenon that the plasma confinement is improved during low density lower-hybrid current drive in tokamaks.
- Publication:
-
Unknown
- Pub Date:
- November 1987
- Bibcode:
- 1987ipcd.rept.....U
- Keywords:
-
- Electrons;
- Landau Damping;
- Pinch Effect;
- Plasma Control;
- Plasma Drift;
- Tokamak Devices;
- Damping;
- Magnetic Fields;
- Plasma Physics