Nonlinear response of magnetic islands to localized electron cyclotron current injection (Articolo in rivista)

Type
Label
  • Nonlinear response of magnetic islands to localized electron cyclotron current injection (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.4885635 (literal)
Alternative label
  • D. Borgogno (1,2); L. Comisso (2,3); D. Grasso (2,3); E. Lazzaro (4) (2014)
    Nonlinear response of magnetic islands to localized electron cyclotron current injection
    in Physics of plasmas
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • D. Borgogno (1,2); L. Comisso (2,3); D. Grasso (2,3); E. Lazzaro (4) (literal)
Pagina inizio
  • 060704 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://scitation.aip.org/content/aip/journal/pop/21/6/10.1063/1.4885635 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 21 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 5 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 6 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) Dipartimento di Fisica, Università di Pisa, Pisa, Italy (2) Dipartimento Energia, Politecnico di Torino, Torino, Italy (3) Istituto Sistemi Complessi--CNR, Roma, Italy (4) Istituto di Fisica del Plasma \"P.Caldirola,\" Associazione Euratom-ENEA-CNR, Milano, Italy (literal)
Titolo
  • Nonlinear response of magnetic islands to localized electron cyclotron current injection (literal)
Abstract
  • The magnetic island evolution under the action of a current generated externally by electron cyclotron wave beams is studied using a reduced resistive magnetohydrodynamics plasma model. The use of a two-dimensional reconnection model shows novel features of the actual nonlinear evolution as compared to the zero-dimensional model of the generalized Rutherford equation. When the radio frequency control is applied to a small magnetic island, 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 injection in a large nonlinear island can be accompanied by the occurrence of a Kelvin-Helmholtz instability. These effects need to be taken into account in designing tearing mode control systems based on radio frequency current-drive. (C) 2014 AIP Publishing LLC. (literal)
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