Resonant Magnetic Perturbation: Difference between revisions
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A Resonant Magnetic Perturbation (RMP) is an externally-induced small perturbation of the [[MHD equilibrium|equilibrium]] magnetic field, | A Resonant Magnetic Perturbation (RMP) is an externally-induced small perturbation of the [[MHD equilibrium|equilibrium]] magnetic field, | ||
that is resonant with | such that it is resonant with the field at a given magnetic [[flux surface]], | ||
usually | 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. | |||
The perturbation typically leads to the ergodization of the magentic field around the resonant flux surface. | |||
The goal is to stabilize a specific instability, mainly [[Edge Localized Modes]]. | |||
<ref>[[doi:10.1103/PhysRevLett.95.035003|T.E. Evans, et al, ''Reduced Heat Transport between Edge-Localized-Mode Bursts at Low Collisionality and Small Poloidal Larmor Radius'', Phys, Rev. Lett. '''92''' (2004) 35003]]</ref> | |||
== References == | |||
<references/> | |||
Revision as of 14:14, 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 magentic field around the resonant flux surface.
The goal is to stabilize a specific instability, mainly Edge Localized Modes. [1]