Etude de la propagation et de l'absorption de l'onde hybride dans un plasma de tokamak par tomographie X haute energie
Control of the current density profile is a critical issue in view to obtain high fusion performances in tokamak plasmas. It is therefore important to be able to control the power deposition profile of the lower hybrid wave, which has the highest current drive efficiency among all other non-inductive additional methods. Propagation and absorption and absorption of this wave are investigated in the Tore Supra tokamak, using a new hard x-ray tomographic system and a ne ray-tracing Fokker Planck code. These tools are described in detail and allow to analyze the lower hybrid power deposition profile dependence as a function of various plasma parameters and of the injected wave spectrum
Bibliographic Reference: Report: EUR-CEA-FC-1679 (1999), 280pp.
Availability: Available from the Librarian CEA Cadarache (FR)
Record Number: 199911754 / Last updated on: 2000-01-30
Original language: en
Available languages: en