Abstract
The large edge-localized modes (ELM) in high confinement (H-mode) plasmas were suppressed using a magnetic boundary, produced by an applied edge resonant magnetic perturbation. The magnetic perturbations were produced by a set of control coils, referred to as I coil, located inside the vacuum vessel. The plasmas used in the experiment were double null diverted discharges with a 2 cm downward shift. The results demonstrate that stochastic boundary layers are compatible with H-mode plasmas and that a stochastic layer can suppress ELMs without degrading the global particle and energy confinement.
Original language | English |
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Article number | 235003 |
Pages (from-to) | 235003-1-235003-4 |
Journal | Physical Review Letters |
Volume | 92 |
Issue number | 23 |
DOIs | |
State | Published - Jun 11 2004 |
Externally published | Yes |
Funding
Work supported by the US Department of Energy under DE-FC02-04ER54698, DE-AC04-94AL85000, W-7405-ENG-48, DE-FG02-04ER54758, DE-FG03-01ER54615, DE-FG02-89ER53297, and DE-FG03-01ER54615.