Dynamic shear stabilization of hydromagnetic kink instabilities in pinch and/or Tokamak plasma through a nonlinear mode coupling
Abstract
Dynamic shear stabilization is analyzed from the standpoint of a nonlinear mode coupling between the kink mode and an applied helical RF magnetic field. The analysis is limited to the case of the m = 1 kink mode with long wavelengths in a uniform plasma column with sharp boundary. The dispersion relation of the kink mode in the presence of a small-amplitude helical RF magnetic field is derived. Results suggests that dynamic shear stabilization can be more effective than the prediction of the Mathieu equation.
- Publication:
-
Unknown
- Pub Date:
- September 1978
- Bibcode:
- 1978dssh.reptQ....M
- Keywords:
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- Coupled Modes;
- Dynamic Stability;
- Magnetohydrodynamic Stability;
- Pinch Effect;
- Plasma Control;
- Shear Properties;
- Tokamak Devices;
- Fusion Reactors;
- Magnetic Fields;
- Mathieu Function;
- Plasma Physics