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Updated: Jul 30, 2026

Spatial Separation of Molecular Conformers and Clusters
Published on: January 9, 2014
Suppression of large edge-localized modes in high-confinement DIII-D plasmas with a stochastic magnetic boundary
T E Evans1, R A Moyer, P R Thomas
1General Atomics, San Diego, California, USA.
Abstract:
A stochastic magnetic boundary, produced by an applied edge resonant magnetic perturbation, is used to suppress most large edge-localized modes (ELMs) in high confinement (H-mode) plasmas. The resulting H mode displays rapid, small oscillations with a bursty character modulated by a coherent 130 Hz envelope. The H mode transport barrier and core confinement are unaffected by the stochastic boundary, despite a threefold drop in the toroidal rotation. These results demonstrate that stochastic boundaries are compatible with H modes and may be attractive for ELM control in next-step fusion tokamaks.
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