Resistive Wall Modes Identification and Control in RFX-mod low qedge tokamak discharges (Abstract/Comunicazione in atti di convegno)

Type
Label
  • Resistive Wall Modes Identification and Control in RFX-mod low qedge tokamak discharges (Abstract/Comunicazione in atti di convegno) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Alternative label
  • Matteo Baruzzo; Tommaso Bolzonella; Roberto Cavazzana; Giuseppe Marchiori; Lionello Marrelli; Piero Martin; Roberto Paccagnella; Paolo Piovesan; Lidia Piron; Anton Soppelsa; Paolo Zanca; Yongkyoon In; Yueqiang Liu; Michio Okabayashi; Manabu Takechi; Fabio Villone (2011)
    Resistive Wall Modes Identification and Control in RFX-mod low qedge tokamak discharges
    in 53rd Annual Meeting of the APS Division of Plasma Physics (APS 2011), Salt Lake City, Utah, USA, November 14-18, 2011
    (literal)
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  • Matteo Baruzzo; Tommaso Bolzonella; Roberto Cavazzana; Giuseppe Marchiori; Lionello Marrelli; Piero Martin; Roberto Paccagnella; Paolo Piovesan; Lidia Piron; Anton Soppelsa; Paolo Zanca; Yongkyoon In; Yueqiang Liu; Michio Okabayashi; Manabu Takechi; Fabio Villone (literal)
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  • Abstract ID: BAPS.2011.DPP.TO4.6; ISSN Rivista 0003-0503 (print and linking); To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.DPP.TO4.6; Oral Session TO4. (literal)
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  • http://meetings.aps.org/Meeting/DPP11/Event/153055 (literal)
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  • Bulletin of the American Physical Society - 53rd Annual Meeting of the APS Division of Plasma Physics (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#volumeInCollana
  • 56/16 (literal)
Note
  • Comunicazione (literal)
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  • 1) Consorzio RFX, Associazione EURATOM-ENEA sulla Fusione, Corso Stati Uniti,4, 35127 Padova - Italy 2) FAR-TECH 3) CCFE 4) PPPL 5) JAEA 6) CREATE (Matteo Baruzzo 1; Tommaso Bolzonella 1; Roberto Cavazzana 1; Giuseppe Marchiori 1; Lionello Marrelli 1; Piero Martin 1; Roberto Paccagnella 1; Paolo Piovesan 1; Lidia Piron 1; Anton Soppelsa 1; Paolo Zanca 1; Yongkyoon In 2; Yueqiang Liu 3; Michio Okabayashi 4; Manabu Takechi 5; Fabio Villone 6) (literal)
Titolo
  • Resistive Wall Modes Identification and Control in RFX-mod low qedge tokamak discharges (literal)
Abstract
  • In this work the MHD stability of RFX mode tokamak discharges with q$_{edge}< will be studied. The target plasma scenario is characterized by a plasma current 100kA$<$Ip$<0kA, a Greenwald density fraction included between 0.5 and 1 and a minimum q$_{edge}$=1.7 value. The operation in this regime is limited by the onset of a slowly rotating m=2 n=1 kink mode, which eventually locks to the wall and induces a disruption. The mode growth rates have been characterized with regard to the main plasma parameters and have been compared with predictions by the linear MHD code MARS-F, and the 3D finite elements code CARMA, permitting a full Resistive Wall Mode identification. The stability of the mode in the vicinity of the unstable operational space has been studied using MHD spectroscopy on the (2/1) mode. A good discharge behaviour with q$_{edge}< has been routinely obtained using the RFX-mod MHD active control system, which is capable of fully stabilizing the mode acting on the radial magnetic field at the plasma edge. (literal)
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