Toroidal rotation in Ohmic and RF heated JET plasmas

M. F.F. Nave, L. G. Eriksson, T. Hellsten, K. D. Zastrow, B. Alper, Y. Andrew, R. Barnsley, J. Brzozowski, K. Crombé, A. Czarnecka, M. Von Hellermann, J. Ongena

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Résumé

The central region of Ohmic plasmas in the JET divertor configuration are counter rotating with toroidal frequencies up to -8 krad/s. ICRF heated plasmas have been found to either co or counter- rotate with central angular frequencies ranging from -6 krad/s to +10 krad/s. Once the Ohmic rotation is subtracted, one finds in most cases co-current acceleration when ICRF power is applied. In addition, the ICRF induced rotation appears to originate in the plasma core and it was found to be sensitive to the plasma current. The differences in frequency profile shape cannot be attributed to differences in sawtooth instability. The outer part of the plasma is observed to rotate in the co-current direction independently of heating scenario.

langue originaleAnglais
titre34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts
Pages1705-1708
Nombre de pages4
Edition3
étatPublié - 2007
Evénement34th European Physical Society Conference on Plasma Physics 2007, EPS 2007 - Warsaw, Pologne
Durée: 2 juil. 20076 juil. 2007

Série de publications

Nom34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts
nombre3
Volume31

Une conférence

Une conférence34th European Physical Society Conference on Plasma Physics 2007, EPS 2007
Pays/TerritoirePologne
La villeWarsaw
période2/07/076/07/07

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