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Edge localized mode control with an edge resonant magnetic perturbation

Moyer, R. A; Evans, T. E; Osborne, T. H; Thomas, P. R; Becoulet, M.; Harris, J.; Finken, K.-H; Boedo, J. A; Doyle, E. J; Fenstermacher, M. E; Gohil, P.; Groebner, R. J; Groth, M.; Jackson, G. L; La Haye, R. J; Lasnier, C. J; Leonard, A. W; McKee, G. R; Reimerdes, H.; Rhodes, T. L; Rudakov, D. L; Schaffer, M. J; Snyder, P. B; Wade, M. R; Wang, G.; Watkins, J. G; West, W. P; Zeng, L.


A low amplitude (δbr∕BT=1 part in 5000) edge resonantmagnetic field perturbation with toroidalmode number n=3 and poloidal mode numbers between 8 and 15 has been used to suppress most large type I edge localized modes(ELMs) without degrading core plasma confinement. ELMs have been suppressed for periods of up to 8.6 energy confinement times when the edge safety factor q95 is between 3.5 and 4. The large ELMs are replaced by packets of events (possibly type II ELMs) with small amplitude, narrow...[Show more]

CollectionsANU Research Publications
Date published: 2005-04-28
Type: Journal article
Source: Physics of Plasmas
DOI: 10.1063/1.1888705


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