科研之友
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摘要
Peeling modes, an instability mechanism underlying deleterious edge localized mode (ELM) activity in fusion-grade plasmas, are observed at the edge of limited plasmas in a low aspect ratio tokamak under conditions of high edge current density (J(edge) similar to 0.1 MA/m(2)) and low magnetic field (B similar to 0.1 T). They generate edge-localized, electromagnetic activity with low toroidal mode numbers n <= 3 and amplitudes that scale strongly with measured J(edge)/B instability drive, consistent with theory. ELM-like field-aligned, current-carrying filaments form from an initial current-hole Jedge perturbation that detach and propagate outward.
- 出版日期2011-7-12
