Publications by Gilbert Tonetti

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Sawtooth inversion radii and profile peaking factors of a large variety of ohmic and ECH heated L mode plasmas, including, elongations up to 2.6 and triangularities between -0.5 and 0.75, have been investigated in the TCV tokamak. In ohmic plasmas, normalized inversion radii and electron temperature profile peaking factors (corrected for sawtoothing effects) depend solely on the parameter (j)/q(0)j(0), irrespective of plasma shape. With ECH this parameter remains the main scaling parameter. Density profiles

Fully noninductive, steady-state electron cyclotron current drive (ECCD) has been demonstrated for the first time in experiments carried out in the tokamak a configuration variable (TCV) [O. Sauter , Phys. Rev. Lett. 84, 3322 (2000)]. By appropriately distributing six 0.45 MW ECCD sources over the discharge cross section, fully noninductive, stable, and stationary plasmas with I-p up to 210 kA were obtained for the full discharge duration of 1.9 s, corresponding to more than 900 energy confinement times and

Within the range of plasma shapes and plasma currents investigated, the electron confinement time, tau_Ee, increases with safety factor, density and negative triangularity similar to the Ohmic heating case. There is little dependence of tau_Ee on the heating location provided power deposition occurs inside the q=1 surface; as power deposition moves out of the inversion surface, tau_Ee decreases. The power-induced energy confinement degradation exponent (tau_Ee~PaP) is as usual: alpha_P ~-0.5. As a general t

Ohmic H-mode has been regularly obtained on the TCV tokamak. This paper describes the change in magnetic activity occuring at the transition, the coherent activity during H-mode, a brief description of the dithering phase, and the activity associated with large and grassy ELMs.

This paper presents the multiple set of requirements for the ITER magnetic diagnostic systems and the current status of the various R&D activities performed by the EU partners. ...

Gilbert Tonetti

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Shape dependence of sawtooth inversion radii and profile peaking factors in TCV L mode plasmas

Steady-state fully noninductive operation with electron cyclotron current drive and current profile control in the tokamak a configuration variable (TCV)

EFFECT OF LOCALISED ELECTRON CYCLOTRON HEATING ON ENERGY CONFINEMENT AND MHD IN TCV

Mhd Activity During H-Mode Discharges on the Tcv Tokamak

The Magnetic Diagnostic Set for ITER

The Magnetic Diagnostic Set for ITER

The Heavy Ion Beam Diagnostic Project for the TCV Tokamak

MHD operational limits and disruption statistics in TCV ohmic plasmas

Fast single loop diamagnetic measurements on the TCV tokamak

H-mode threshold for ohmic plasmas in TCV

Development of an ion beam probe diagnostic system - Part I

Magnetic measurements on the TCV tokamak

MHD activity during H-mode discharges on the TCV tokamak

Diamagnetic measurements on the TCV tokamak

Measurement of the energy content of JET tokamak plasma with a diamagnetic loop

Direct Measurement of Plasma Electromagnetic Potential

Preliminary confinement studies during ECRH in TCV

MHD-activity in ohmic, diverted and limited H-mode plasmas in TCV

Determination of poloidal Beta in JET

Control, pressure perturbations, displacements, and disruptions in highly elongated tokamak plasmas