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Toroidal rotation in RF heated JET plasmas

  • L. G. Eriksson
  • , T. Hellsten
  • , F. Nave
  • , J. Brzozowski
  • , K. Holmström
  • , T. Johnson
  • , J. Ongena
  • , K. D. Zastrow
  • Commissariat à l'Énergie Atomique (CEA)
  • KTH Royal Institute of Technology
  • Instituto Superior Técnico
  • EURATOM-UKAEA Association Culham Science Centre

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Résumé

Experiments have been carried out on JET aimed at studying rotation in RF heated plasmas with low external momentum input. Both plasmas with Ion Cyclotron Resonance Frequency (ICRF) heating and Lower Hybrid Current Drive (LHCD) have been investigated. The rotation profiles are measured by Charge Exchange recombination spectroscopy, using short diagnostic Neutral Beam Injection (NBI) pulses. Moreover, the temporal evolution of the central rotation could in some cases be deduced from MHD activity. While most of the measurements were focussed on ICRF heating, the profiles measured in plasmas with LHCD are interesting since they are the first reported from JET in such plasmas. In particular, they allowed for studies of rotation in RF heated plasmas with q>1. The experimental results are presented together with an analysis of the torque from ICRF heated fast ions.

langue originaleAnglais
titreRADIO FREQUENCY POWER IN PLASMAS
Sous-titre17th Topical Conference on Radio Frequency Power in Plasmas
Pages59-62
Nombre de pages4
Les DOIs
étatPublié - 2007
Evénement17th Topical Conference on Radio Frequency Power in Plasmas - Clearwater, FL, États-Unis
Durée: 7 mai 20079 mai 2007

Série de publications

NomAIP Conference Proceedings
Volume933
ISSN (imprimé)0094-243X
ISSN (Electronique)1551-7616

Une conférence

Une conférence17th Topical Conference on Radio Frequency Power in Plasmas
Pays/TerritoireÉtats-Unis
La villeClearwater, FL
période7/05/079/05/07

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