Three-dimensional dynamics of turbulence in the edge of fusion plasmas

N. Mahdizadeh, F. Greiner, A. Kendl, M. Ramisch, B. Scott, U. Stroth

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

Abstract

For the first time, the three-dimensional nature of drift waves has been verified experimentally inside the confinement region of a toroidal plasma. It was shown that the propagation in the direction parallel to the magnetic field is affected by Alfvén dynamics. The cross phase between density and potential fluctuations is small, which is consistent with the drift-wave model. These results strongly confirm previous investigations, which have demonstrated the importance of drift-wave turbulence in TJ-K and therefore also in fusion edge plasmas. The measurements show that turbulent fluctuations on the low-field side are responsible for a major fraction of turbulent transport. This asymmetry of the turbulent transport could be related to magnetic field curvature effects, which becomes important on the low-field side.

OriginalspracheEnglisch
Titel34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts
Seiten444-447
Seitenumfang4
Auflage1
PublikationsstatusVeröffentlicht - 2007
Extern publiziertJa
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
Nummer1
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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