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Abstract

One of main results of the Wendelstein 7-AS stellarator is the achievement of the H-mode confinement in ECR-and NBI-heated plasmas. There is a strong dependence on the external rotational transform; the H-mode confinement can be found only in a narrow window close to I=1/2. Viscous damping and the interaction with a neutral background are the only mechanisms proposed so far as damping mechanism, which inhibits the poloidal shear flow. Viscous damping and the interaction with a neutral background are the only mechanisms proposed so far as damming mechanism, which inhibits the poloidal shear flow.

Additional information

Authors: WOBIG H, Max-Planck-Institut fur Plasmaphysik, Garching (DE);KISSLINGER J, Max-Planck-Institut fur Plasmaphysik, Garching (DE)
Bibliographic Reference: Report: IPP III/250, (1999), 22pp.
Availability: Available from the Librarian at Max-Planck-Institut fur Plasmaphysik, Garching (DE)
Record Number: 199911697 / Last updated on: 1999-12-24
Category: PUBLICATION
Original language: en
Available languages: en