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FP7

ELM control by resonant magnetic perturbations on JET and MAST

Funded under: FP7-EURATOM

Abstract

In both JET and MAST, the Error Field Correction Coils (EFCCs) have been used recently in order to attempt to control Type I Edge Localised Modes (ELMs), which represent a major threat to the lifetime of plasma facing components in ITER. Using vacuum magnetic modelling it is suggested that the ELM mitigation observed at JET could be related to the stochastization of the magnetic field at the edge. Indeed, the onset of ELM mitigation is found to be correlated with a certain level of the Chirikov parameter profile. Initial MAST results are presented which show an effect of EFCCs on the ELMs, again compatible with edge stochastization according to the modelling. New coils dedicated to ELM control are ready for use on MAST this year and are presented here briefly.

Additional information

Authors: NARDON E, EURATOM-UKAEA Fusion Association, Culham Science Centre, Abingdon (GB);KIRK A, EURATOM-UKAEA Fusion Association, Culham Science Centre, Abingdon (GB);BEN AYED N, EURATOM-UKAEA Fusion Association, Culham Science Centre, Abingdon (GB);SAARELMA S, EURATOM-UKAEA Fusion Association, Culham Science Centre, Abingdon (GB);BECOULET M, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);HUYSMANS G, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);THOMAS P R, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);KOSLOWSKI H R, Institut für Plasmaphysik, Forschungszentrum Jülich, Association EURATOM/FZJ, Trilateral Euregio Cluster, Jülich (DE);LIANG Y, Institut für Plasmaphysik, Forschungszentrum Jülich, Association EURATOM/FZJ, Trilateral Euregio Cluster, Jülich (DE);CAHYNA P, Institute of Plasma Physics AS CR v.v.i. Prague (CZ);EVANS T E, General Atomics, San Diego (US)
Bibliographic Reference: An oral paper given at: 18th International Conference on Plasma-Surface Interactions in Controlled Fusion Device Organised by: Laboratorio Nacional de Fusión Held in: Toledo (ES)
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/doi:10.1016/j.jnucmat.2009.01.205
Record Number: 200910357 / Last updated on: 2009-09-22
Category: PUBLICATION
Original language: en
Available languages: en