München 2019 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 15: Helmholtz Graduate School V - Magnetic Confinement II

P 15.4: Vortrag

Mittwoch, 20. März 2019, 12:25–12:50, HS 21

Gas balance of Wendelstein 7-X — •Georg Schlisio, Uwe Wenzel, Thomas Sunn Pedersen, and W7X Team — Max-Planck-Institut für Plasmaphysik, Wendelsteinstraße 1, 17491 Greifswald

Wendelstein 7-X is the worlds most advanced stellarator fusion experiment. With its graphite island divertor and steady state magnetic field, it is designed for long pulse operation up to 30 minutes. This requires a continuous fuel cycle of particle input and exhaust. An accounting of all gas sources and sinks is done in a gas balance. A global approach to the gas balance is presented, along with results from the first divertor operation campaign OP1.2.

The effects of different fueling schemes as well as neutral beam heating is considered and evaluated with respect to the gas balance.

The particle output was diagnosed with total pressure gauges and a diagnostic RGA to provide more detailed insight into gas output.

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