The localized electron cyclotron resonance heating power that can suppress sawteeth reconnection often drives m = 2 tearing modes in a tokamak operating at constant current. The dynamics of mode onset and coupled mode evolution is described in detail and compared with a nonlinenr theoretical model that identifies the effects of mode coupling, finite inertia of the rotating islands, and wall braking.
Dynamics of tearing modes during strong electron cyclotron heating on the FTU tokamak
Lazzaro E;Bruschi A;Cirant S;Granucci G;Nowak S;Ramponi G;Simonetto A;Sozzi C;
2000
Abstract
The localized electron cyclotron resonance heating power that can suppress sawteeth reconnection often drives m = 2 tearing modes in a tokamak operating at constant current. The dynamics of mode onset and coupled mode evolution is described in detail and compared with a nonlinenr theoretical model that identifies the effects of mode coupling, finite inertia of the rotating islands, and wall braking.File in questo prodotto:
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