Magnetic island evolution under the action of electron cyclotron current drive (Contributo in atti di convegno)

Type
Label
  • Magnetic island evolution under the action of electron cyclotron current drive (Contributo in atti di convegno) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/1742-6596/401/1/012002 Published under (literal)
Alternative label
  • D. Borgogno (1); L. Comisso (1,2); D. Grasso (1,2); E. Lazzaro (3) (2012)
    Magnetic island evolution under the action of electron cyclotron current drive
    in 13th Joint Varenna-Lausanne International Workshop on the Theory of Fusion Plasmas, Varenna, Italy, Aug. 27-31, 2012
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • D. Borgogno (1); L. Comisso (1,2); D. Grasso (1,2); E. Lazzaro (3) (literal)
Pagina inizio
  • 012002 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://iopscience.iop.org/1742-6596/401/1/012002?fromSearchPage=true (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 401 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) Dipartimento Energia, Politecnico di Torino, Italy 2) Istituto Sistemi Complessi - CNR, Roma, Italy 3) Istituto di Fisica del Plasma \"P.Caldirola\", Associazione Euratom-ENEA-CNR, Milano, Italy (literal)
Titolo
  • Magnetic island evolution under the action of electron cyclotron current drive (literal)
Abstract
  • The magnetic island evolution under the action of an externally current generated by electron cyclotron (ECCD) wave beams is studied using a reduced resistive magnetohydrodynamics (RRMHD) plasma model. We found interesting and somewhat unexpected features of the actual nonlinear 2-D evolution of the magnetic perturbation depending on the injection time of the radio frequency control. In particular in the linear phase of the magnetic island growth we observe that the complete annihilation of the island width is followed by a spatial phase shift of the island, referred as \"flip\" instability. On the other hand, a current drive deposition in the Rutherford regime can be accompained by the occurrence of a Kelvin-Helmholtz type shear flow instability, responsible for the onset of a plasma turbulent behavior. (literal)
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