Suppression of Large Edge Localized Modes with Edge Resonant Magnetic Fields in High Confinement DIII-D Plasmas

Evans, T; Moyer, R; Watkins, J G; Osborne, T. H; Thomas, P. R; Becoulet, M; Boedo, J; Doyle, Edward Dermot; Finken, K. H; Groebner, R. J; Groth, M; Harris, Jeffrey; Jackson, Gregory; La Haye, R. J; Lasnier, C. J; Masuzaki, S; Ohyabu, N; Pretty, David; Reimerdes, H; Rhodes, T. L; Rudakov, D; Schaffer, M. J; Wade, M. R; Wang, G; West, W. P; Zeng, L; Fenstermacher, M. E

Suppression of Large Edge Localized Modes with Edge Resonant Magnetic Fields in High Confinement DIII-D Plasmas

Date

2005

Authors

Evans, T

Moyer, R

Watkins, J G

Osborne, T. H

Thomas, P. R

Becoulet, M

Boedo, J

Doyle, Edward Dermot

Finken, K. H

Groebner, R. J

Publisher

IOP Publishing

Abstract

Large sub-millisecond heat pulses due to Type-I edge localized modes (ELMs) have been eliminated reproducibly in DIII-D for periods approaching nine energy confinement times (τE) with small dc currents driven in a simple magnetic perturbation coil. The c