Feedback Stabilization of Multiple Resistive Wall Modes

200495 citationsJournal Article

Authors

P. R. Brunsell · KTH Royal Institute of Technology

D. Yadikin · KTH Royal Institute of Technology

D. Gregoratto · National Agency for New Technologies, Energy and Sustainable Economic Development

R. Paccagnella · National Agency for New Technologies, Energy and Sustainable Economic Development

T. Bolzonella · National Agency for New Technologies, Energy and Sustainable Economic Development

M. Cavinato · National Agency for New Technologies, Energy and Sustainable Economic Development

Abstract

Active feedback stabilization of multiple independent resistive wall modes is experimentally demonstrated in a reversed-field pinch plasma. A reproducible simultaneous suppression of several nonresonant resistive wall modes is achieved. Coupling of different modes due to the limited number of the feedback coils is observed in agreement with theory. The feedback stabilization of nonresonant RWMs also has an effect on tearing modes that are resonant in the central plasma, leading to a significant prolongation of the discharge pulse.

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Magnetic confinement fusion research Plasma Diagnostics and Applications Ionosphere and magnetosphere dynamics

Publication Details

Published in: Physical Review Letters

Volume 93, Issue 22

DOI: 10.1103/physrevlett.93.225001

Field-Weighted Citation Impact: 10.00

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Feedback Stabilization of Multiple Resistive Wall Modes

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Abstract

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Publication Details