title: Magnetic topology changes induced by lower hybrid waves and their profound effect on edge-localized modes in the EAST tokamak.
abstract: Strong mitigation of edge-localized modes has been observed on Experimental Advanced Superconducting Tokamak, when lower hybrid waves (LHWs) are applied to H-mode plasmas with ion cyclotron resonant heating. This has been demonstrated to be due to the formation of helical current filaments flowing along field lines in the scrape-off layer induced by LHW. This leads to the splitting of the outer divertor strike points during LHWs similar to previous observations with resonant magnetic perturbations. The change in the magnetic topology has been qualitatively modeled by considering helical current filaments in a field-line-tracing code.
authors.affiliation: Forschungszentrum Jülich GmbH, Association EURATOM-FZ Jülich, Institut für Energie und Klimaforschung Plasmaphysik, Trilateral Euregio Cluster, D-52425 Jülich, Germany.
authors.forename: Y
authors.initials: Y
authors.lastname: Liang
authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.initials: XZ
authors.lastname: Gong
authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.lastname: Wang
authors.affiliation: Forschungszentrum Jülich GmbH, Association EURATOM-FZ Jülich, Institut für Energie und Klimaforschung Plasmaphysik, Trilateral Euregio Cluster, D-52425 Jülich, Germany.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Forschungszentrum Jülich GmbH, Association EURATOM-FZ Jülich, Institut für Energie und Klimaforschung Plasmaphysik, Trilateral Euregio Cluster, D-52425 Jülich, Germany and Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.lastname: Zeng
authors.affiliation: Forschungszentrum Jülich GmbH, Association EURATOM-FZ Jülich, Institut für Energie und Klimaforschung Plasmaphysik, Trilateral Euregio Cluster, D-52425 Jülich, Germany.
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authors.affiliation: Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6169, USA.
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authors.lastname: Wingen
authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.lastname: Jie
authors.affiliation: Forschungszentrum Jülich GmbH, Association EURATOM-FZ Jülich, Institut für Energie und Klimaforschung Plasmaphysik, Trilateral Euregio Cluster, D-52425 Jülich, Germany.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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authors.affiliation: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
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