Giant oscillations of electron temperature during steady-state operation on tore supra

F. Imbeaux, G. Giruzzi, P. Maget, J.L. Ségui, V.S. Udintsev, J.F. Artaud, D. Elbèze, G.T.A. Huysmans, E. Joffrin, D. Mazon, R. Sabot, A. Sirinelli

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21 Citations (Scopus)


During fully noninductively driven discharges in the Tore Supra tokamak, large spontaneous oscillations of the core electron temperature (ΔTe/Te>50%) have been observed for the first time. They occurred during the standard O regime, which is itself characterized by periodic oscillations of much smaller amplitude. The “giant” oscillations appear to involve distinct mechanisms with respect to the O regime and provide a spectacular example of the complex nonlinear interactions between energy confinement, noninductive current sources, and MHD that may occur in a tokamak plasma during steady-state operation.
Original languageEnglish
Article number45004
JournalPhysical Review Letters
Issue number4
Publication statusPublished - 1 Feb 2006
Externally publishedYes


  • Tokamaks spherical tokamaks
  • Transport properties
  • Nonlinear phenomena: waves wave propagation and other interactions

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