Tore Supra is one of the largest tokamak in the world. Its main features are its superconducting toroidal magnets and its actively cooled first wall. Tore Supra is specialized to the study of physics and technology dedicated to long plasma discharge.

TORE SUPRA Objectives
The purpose of TORE SUPRA is to obtain long stationary discharges, thus addressing two major questions: non-inductive current generation and continuous heat and particles removal. The physics programme therefore has two principal research orientations, complemented by studies on Magnethydrodynamic (MHD) stability, turbulence, and transport.
The first physics programme concerns the interaction of electromagnetic (Lower Hybrid and Ion Cyclotron) waves with the hot central plasma. All or part of the plasma current can be generated in this manner, thus controlling the current density profile. This is an important contribution to the concept of an “advanced tokamak”. In 1996 notable progress has been made, allowing totally non-inductive shots over a period of 75 s to be obtained.
The second physics programme concerns the edge plasma and its interaction with the first wall.
One originality of TORE SUPRA is the ergodic divertor, which perturbs the magnetic field at the plasma edge by creating a chaotic magnetic field region, resulting in outfluxes of hot plasma collected on neutralizers. Highly radiative layers have been obtained with this device, while preserving a good particle extraction capacity.

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