Giant Oscillations of Electron Temperature during Steady-State Operation on Tore Supra
During fully noninductively driven discharges in the Tore Supra tokamak, large spontaneous oscillations of the core electron temperature (DeltaT(e)/T(e)>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.
Bibliographic Reference: An article published in: Phys. Rev. Lett. 96, 045004 (2006)
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/doi:10.1103/PhysRevLett.96.045004
Record Number: 200719148 / Last updated on: 2007-05-21
Original language: en
Available languages: en