Aachen PK 2003 – wissenschaftliches Programm

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P: Plasmaphysik

P 4: Poster I

P 4.24: Poster

Montag, 17. März 2003, 17:45–19:15, Foyer

Plasma flow investigation in TOMAS toroidal device with Gundestrup probe — •Philippe Sicard^1,2, Andrey Litnovsky^1,2, and Claude Boucher² — ¹Universite du Quebec-INRS, Canada — ²Institüt für Plasmaphysik, Forschungszentrum Jülich, Germany

Investigations of plasma flows are of prime importance in understanding the physics of edge and divertor plasmas of fusion devices. The Gundestrup probe, an electrostatic probe array, is one of the tools available for these investigations and is now being used in several tokamaks. This probe is capable of detecting plasma flow velocities in directions both parallel and perpendicular to the magnetic field. Various theoretical models are used to deduce flow velocity from the Gundestrup data, but these models need to be validated. In an effort to validate these models an experiment is under way in the toroidal device TOMAS at IPP Forschungszentrum Jülich, Germany. It is planned to verify flow measurements made with Gundestrup probe against data from a Laser Induced Fluorescence (LIF) system. The results of flow measurements will be presented and discussed.