Mode Conversion and Plasma Column Resonances in the Ion-Cyclotron Harmonics Range
Abstract
An extraordinary wave is excited in a plasma column with a long rf coil. The plasma absorption exhibits resonances for frequencies below the second ion gyroharmonic (ω<2Ωi). The resonances are shown to be similar, in the ion frequency range, to the Buchsbaum-Hasegawa resonances since they originate from a conversion at the lower hybrid layer of the electromagnetic wave into an ion Bernstein wave. Because of hot plasma effects, the short-wavelength converted wave is observed to propagate into the plasma core even for ω>2Ωi.
- Publication:
-
Physical Review Letters
- Pub Date:
- September 1976
- DOI:
- 10.1103/PhysRevLett.37.753
- Bibcode:
- 1976PhRvL..37..753S
- Keywords:
-
- Ion Cyclotron Radiation;
- Mode Transformers;
- Plasma Cylinders;
- Plasma Resonance;
- Propagation Modes;
- Electromagnetic Radiation;
- Harmonic Radiation;
- Ionic Waves;
- Wave Excitation;
- Wave Reflection;
- Plasma Physics