Sustained suppression of type-I edge-localized modes with dominantly n = 2 magnetic fields in DIII-D

Lanctot, M. J.; Buttery, R. J.; de Grassie, J. S.; Evans, T. E.; Ferraro, N. M.; Hanson, J. M.; Haskey, Shaun; Moyer, R.; Nazikian, Raffi; Osborne, T. H.; Orlov, D. M.; Snyder, P. B.; Wade, M. R.

Sustained suppression of type-I edge-localized modes with dominantly n = 2 magnetic fields in DIII-D

Date

2013

Authors

Lanctot, M. J.

Buttery, R. J.

de Grassie, J. S.

Evans, T. E.

Ferraro, N. M.

Hanson, J. M.

Haskey, Shaun

Moyer, R.

Nazikian, Raffi

Osborne, T. H.

Publisher

IOP Publishing

Abstract

Type-I edge-localized modes (ELMs) have been suppressed in DIII-D (Luxon et al 2003 Nucl. Fusion 43 1813) H-mode discharges with a H98Y2 confinement factor near 1.0 using magnetic perturbations (MPs) with dominant toroidal mode number n = 2. This expands