This paper reports about a novel and simple technique to control sawteeth in tokamak, which has been experimentally found in RFX-mod used as tokamak. Experiments in RFX- mod demonstrate that an externally applied and feedback-controlled n=1 magnetic perturbation – of the order of 0.05% of the average toroidal field – causes a strong reduction of the sawtooth amplitude. Experimental findings are described and explained by simulations performed with the visco-resistive non-linear MHD code PIXIE3D.
Sawtooth control via n=1 applied magnetic perturbation in tokamak
MARTIN, PIERO;
2013
Abstract
This paper reports about a novel and simple technique to control sawteeth in tokamak, which has been experimentally found in RFX-mod used as tokamak. Experiments in RFX- mod demonstrate that an externally applied and feedback-controlled n=1 magnetic perturbation – of the order of 0.05% of the average toroidal field – causes a strong reduction of the sawtooth amplitude. Experimental findings are described and explained by simulations performed with the visco-resistive non-linear MHD code PIXIE3D.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
