Transient transport barriers in ohmic and electron cyclotron heated RTP plasmas: relation with rational magnetic surfaces (Articolo in rivista)

Type
Label
  • Transient transport barriers in ohmic and electron cyclotron heated RTP plasmas: relation with rational magnetic surfaces (Articolo in rivista) (literal)
Anno
  • 2000-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/0741-3335/42/5A/317 (literal)
Alternative label
  • G Gorini (2,3), P Mantica (2), G M D Hogeweij (1), J de Kloe (1), N J Lopes Cardozo (1) and the RTP team (1) (2000)
    Transient transport barriers in ohmic and electron cyclotron heated RTP plasmas: relation with rational magnetic surfaces
    in Plasma physics and controlled fusion (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • G Gorini (2,3), P Mantica (2), G M D Hogeweij (1), J de Kloe (1), N J Lopes Cardozo (1) and the RTP team (1) (literal)
Pagina inizio
  • A161 (literal)
Pagina fine
  • A168 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://iopscience.iop.org/0741-3335/42/5A/317/ (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 42 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) FOM Instituut voor Plasmafysica `Rijnhuizen', Associatie Euratom-FOM, Trilateral Euregio Cluster, PO Box 1207, 3430 BE Nieuwegein, The Netherlands (2) Istituto di Fisica del Plasma, Euratom-ENEA-CNR Association, Milano, Italy (3) INFM and Dipartimento di Fisica `G.Occhialini', Università degli Studi di Milano-Bicocca, Milano, Italy (literal)
Titolo
  • Transient transport barriers in ohmic and electron cyclotron heated RTP plasmas: relation with rational magnetic surfaces (literal)
Abstract
  • Oblique pellet injection experiments have been performed in RTP ohmic and electron cyclotron (EC) heated plasmas. Peripheral cooling induces a transient rise of the electron temperature (ir,) in the plasma core, with the formation of a region of a high T-e gradient (transient transport barrier). The position of the barrier appears to be linked with the location of low-order rational magnetic surfaces. For Ohmic and EC heated plasmas with resonance moderately off-axis, the T-e rise is peaked in the plasma centre and the footpoint of the barrier is located close to the q = 2 surface. For EC plasmas with far off-axis resonance, i.e. in plasmas exhibiting hollow T-e profiles, the T-e rise starts off-axis, near the innermost low order rational surface (typically q = 3). It then propagates to the centre in a seemingly diffusive (literal)
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