Feedback Suppression of a Large-Growth-Rate Flute Mode
- 19 July 1971
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 27 (3) , 132-135
- https://doi.org/10.1103/physrevlett.27.132
Abstract
A very large growth rate, large saturation amplitude, hard-onset flute mode in a multipolelike magnetic field is suppressed by a factor of 60 in power by negative current feedback to the plasma. Upon suppression of the instability, the center-line density increased 7%. The required feedback gain and phase are in rough agreement with a linear slab-model theory.Keywords
This publication has 5 references indexed in Scilit:
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- Temperature Gradients, Resonance, and the Interchange InstabilityPhysics of Fluids, 1970
- Feedback Control of Collisional Drift Waves by Modulated Parallel-Electron-Current Sink-Experiment and InterpretationPhysical Review Letters, 1969
- Suppression of a "Drift-Type" Instability in a Magnetoplasma by a Feedback TechniquePhysical Review Letters, 1969
- Feedback Stabilization of Drift Waves by Modulated Electron SourcesPhysics of Fluids, 1969