Accueil Imprimer Annuaire Plan du site Crédits Fil RSS du site Twitter Plans d'accès Contacts Annuaire Webmail Intranet Logo

Accueil > A propos du LPP > Communication > Actualités archivées > 2017 > The Fusion team is getting ready for the first WEST experimental campaign

The Fusion team is getting ready for the first WEST experimental campaign

The french tokamak WEST (Cadarache) has successfully ignited its first demonstration plasma on 14th december at the Institute for Magnetized Fusion Research facility from CEA. Four years of major modification work have been necessary to transform Tore Supra into WEST. New magnet configuration and heat extraction systems fully made of Tungsten have been implemented in order to test the plasma facing components of the future ITER reactor in real conditions.
Strongly involved in the project, the fusion plasma group from LPP is currently setting up on WEST the instruments necessary for characterizing the turbulence in the plasma. These instruments developed at LPP are based on collective diffusion of microwaves inside the fusion plasma. This technique gives access to the density fluctuations in the plasma, their distribution in scale and wave number, as well as their velocity obtained via the Doppler effect. An innovative measurement line using the existence of a resonance along the probing wave propagation, will be added to complement the existing channels developed for Tore Supra between 2002 and 2012. Antennas and all related elements bounded to the machine are already installed on WEST.

JPEG - 180.3 ko
Setting up of the waveguides and antenna on the inner wall of WEST (center on the picture), the instruments developed at LPP
by P. Hennequin (left), L. Vermare (right), and C. Honoré (not on the picture)

After system commissioning, the experimental campaign is expected to start early April. It will be focused on achieving the High confinement mode (H mode, as compared to L mode for Low confinement), especially the link between the transition to H mode and the establishment of a strong velocity shearing in the outer plasma where the radial heat transport is to a large extend reduced.


transparent
Tutelles : CNRS Ecole Polytechnique Sorbonne Université Université Paris Sud Observatoire de Paris Convention : CEA
transparent
©2009-2019 Laboratoire de Physique des Plasmas (LPP)

Mentions légales
Exploitant du site : Laboratoire de Physique des Plasmas, Ecole Polytechnique route de Saclay F-91128 PALAISEAU CEDEX
Hébergeur : Laboratoire de Physique des Plasmas, Ecole Polytechnique route de Saclay F-91128 PALAISEAU CEDEX
Directeur de la publication : Pascal Chabert (Directeur)