Resonant Magnetic Perturbation: Difference between revisions
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usually located in the plasma edge region. | usually located in the plasma edge region. | ||
Resonance means that the perturbation has the same [[Rotational transform|helicity]] as the equilibrium magnetic field at the target flux surface. | Resonance means that the perturbation has the same [[Rotational transform|helicity]] as the equilibrium magnetic field at the target flux surface. | ||
The perturbation typically leads to the ergodization of the | The perturbation typically leads to the ergodization of the magnetic field around the resonant flux surface. | ||
The goal is to stabilize a specific instability, mainly [[Edge Localized Modes]]. | The goal is to stabilize a specific instability, mainly [[Edge Localized Modes]]. | ||
Revision as of 15:15, 30 November 2011
A Resonant Magnetic Perturbation (RMP) is an externally-induced small perturbation of the equilibrium magnetic field, such that it is resonant with the field at a given magnetic flux surface, usually located in the plasma edge region. Resonance means that the perturbation has the same helicity as the equilibrium magnetic field at the target flux surface. The perturbation typically leads to the ergodization of the magnetic field around the resonant flux surface.
The goal is to stabilize a specific instability, mainly Edge Localized Modes. [1]