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

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

Abstract

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.

OriginalspracheEnglisch
Titel34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts
Seiten1705-1708
Seitenumfang4
Auflage3
PublikationsstatusVeröffentlicht - 2007
Veranstaltung34th European Physical Society Conference on Plasma Physics 2007, EPS 2007 - Warsaw, Polen
Dauer: 2 Juli 20076 Juli 2007

Publikationsreihe

Name34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts
Nummer3
Band31

Konferenz

Konferenz34th European Physical Society Conference on Plasma Physics 2007, EPS 2007
Land/GebietPolen
OrtWarsaw
Zeitraum2/07/076/07/07

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