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ELM mitigation via rotating resonant magnetic perturbations on MAST
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SYSNO ASEP 0454107 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title ELM mitigation via rotating resonant magnetic perturbations on MAST Author(s) Thornton, A.J. (GB)
Kirk, A. (GB)
Cahyna, Pavel (UFP-V) RID
Chapman, I.T. (GB)
Fishpool, G. (GB)
Harrison, J.R. (GB)
Liu, Y.Q. (GB)
Kripner, Lukáš (UFP-V) ORCID
Peterka, Matěj (UFP-V) RID, ORCIDSource Title Journal of Nuclear Materials. - : Elsevier - ISSN 0022-3115
Roč. 463, August (2015), s. 723-726Number of pages 4 s. Publication form Print - P Action PLASMA-SURFACE INTERACTIONS 21: International Conference on Plasma-Surface Interactions in Controlled Fusion Devices Event date 26.05.2014-30.05.2014 VEvent location Kanazawa Country JP - Japan Event type WRD Language eng - English Country NL - Netherlands Keywords edge localised mode ; resonant magnetic perturbation ; MAST Subject RIV JF - Nuclear Energetics OECD category Nuclear related engineering R&D Projects GAP205/11/2341 GA ČR - Czech Science Foundation (CSF) Institutional support UFP-V - RVO:61389021 UT WOS 000358467200152 EID SCOPUS 84937816262 DOI https://doi.org/10.1016/j.jnucmat.2014.09.079 Annotation The application of resonant magnetic perturbations (RMPs) produces splitting of the divertor strike point due to the interaction of the RMP field and the plasma field. The application of a rotating RMP field causes the strike point splitting to rotate, distributing the particle and heat flux evenly over the divertor. The RMP coils in MAST have been used to generate a rotating perturbation with a toroidal mode number n = 3. The ELM frequency is doubled with the application of the RMP rotating field, whilst maintaining the H mode. During mitigation, the ELM peak heat flux is seen to be reduced by 50% for a halving in the ELM energy and motion of the strike point, consistent with the rotation of the applied RMP field, is seen using high spatial resolution (1.5 mm at the target) heat flux profiles measured using infrared (IR) thermography Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2016
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