Non-linear electron temperature oscillations on Tore Supra: experimental observations and modelling by the CRONOS code
The recently discovered plasma regime characterised by stationary electron temperature oscillations, has been the object of further experimental investigation and extensive modelling by the integrated plasma simulation code CRONOS. The simulations have revealed the nature of the temperature oscillations, which originate from a non-linear coupling of temperature and current density profiles, of the predator-prey type. Various kinds of models are used inside CRONOS to produce oscillations which characteristics are close to the experimental observations. This phenomenon appears as a sharp test for transport theories, in particular those concerning the formation of internal transport barriers. Finally, recent experimental observations of the interplay between these stationary electron temperature oscillations and MHD activity are presented.
Bibliographic Reference: An oral paper given at: 20th IAEA Fusion Energy Conference Organised by: International Atomic Energy Agency Held at: Centrtro de Fusao Nuclear, Vilamoura (PT)
Availability: Available from Association EURATOM-CEA, Département de Recherches sur la Fusion Contrôlée, CEA Cadarache, F-13108 St Paul-Lez-Durance, France Tel: (+33) 4 42 25 70 01; Fax: (+33) 4 42 25 64 21 E-mail: firstname.lastname@example.org
Record Number: 200517938 / Last updated on: 2005-02-24
Original language: en
Available languages: en