2024
DOI: 10.1088/1741-4326/ad2b2e
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Sawtooth suppression by flux pumping on HBT-EP

Boting Li,
J.P. Levesque,
G.A. Navratil
et al.

Abstract: This study examines the mechanisms underlying sawtooth suppression in the High Beta Tokamak-Extended Pulse (HBT-EP) device. It is observed that strong-intensity sawtooth activities correlate with reduced-amplitude MHD edge modes which are identified as m/n=3/1 external kink modes (XK), while sawtooth suppression correlates with larger and saturated edge mode amplitudes. To further investigate these correlations, the plasma-wall coupling was manipulated by adjusting the positions of the conducting walls in HBT-… Show more

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