Magnetic island structures and their rotation after pellet injection in FTU (Articolo in rivista)

Type
Label
  • Magnetic island structures and their rotation after pellet injection in FTU (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/0029-5515/44/2/002 (literal)
Alternative label
  • Giovannozzi E, Annibaldi SV., Buratti P., Frigione D., Lazzaro E., Panaccione L., Tudisco O. (2004)
    Magnetic island structures and their rotation after pellet injection in FTU
    in Nuclear fusion
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Giovannozzi E, Annibaldi SV., Buratti P., Frigione D., Lazzaro E., Panaccione L., Tudisco O. (literal)
Pagina inizio
  • 226 (literal)
Pagina fine
  • 231 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://iopscience.iop.org/0029-5515/44/2/002/ (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 44 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [ 1 ] CR Frascati, Assoc EURATOM ENEA, Rome, Italy [ 2 ] INFM, Burning Plasma Res Grp, Turin, Italy [ 3 ] Politecn Torino, Turin, Italy [ 4 ] CNR, IFP, Assoc EURATOM ENEA CNR, Milan, Italy (literal)
Titolo
  • Magnetic island structures and their rotation after pellet injection in FTU (literal)
Abstract
  • Pellet injection gives rise to a rich variety of observations on m = 1 island dynamics. Pellet ablation near the q = 1 surface triggers fast growth of an island; as the island reaches a large amplitude, magnetic reconnection mixes the plasma centre with the q = 1 pellet fuelled region, so enhancing the effective pellet deposition depth. Long-lived m = 1 islands that coexist with sawtooth crashes are accompanied by higher harmonics (m/n = 1 with m > 1, where m is the poloidal mode number and n is the toroidal one) near the q = 1 surface; progressive phase shifts observed in the phase of such harmonics indicate island deformation by sheared viscous flow. Coupling between m = 1 and m = 2 islands is observed in sawtooth-free plasmas. Reconnection at the q = 2 surface is driven by a toroidal sideband of the m = 1 island; coupling is associated with strong braking of the m = 1 island. (literal)
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