Turbulence during ergodic divertor experiments in Tore SupraFunded under: FP3-FUSION 11C
The level of density fluctuations is shown to decrease during ergodic divertor operation in Tore Supra. This decrease of the turbulence is correlated with the onset of a temperature pedestal and a local improvement of the confinement. This pedestal is located close to the electric shear layer, within a narrow region between the plasma core and the ergodic layer. The onset of such a pedestal explains why the central electron temperature is not changed when the ergodic divertor is switched on, in spite of an ergodic zone where the temperature is low.
Bibliographic Reference: Report: EUR-CEA-FC-1534 EN (1994) 30 pp.
Availability: Available from CEA, Département de Recherches sur la Fusion Contrôlée, Saint-Paul-lez-Durance (FR)
Record Number: 199510225 / Last updated on: 1995-02-21
Original language: en
Available languages: en