Bochum 2015 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 13: Poster Session - Plasma Wall Interactions
P 13.2: Poster
Dienstag, 3. März 2015, 16:30–18:30, Foyer Audimax
Method development for detecting divertor failures during steady state operation of Wendelstein 7X — •Alexander Rodatos1, Marcin Jakubowski1, Thomas Sunn Pedersen1, and Henri Greuner2 — 1Max Planck Institute for Plasma Physics, Wendelsteinstr. 1, Greifswald, Germany — 2Max Planck Institute for Plasma Physics, Boltzmannstr. 2, Garching, Germany
Wendelstein 7-X (W7-X) is stellarator fusion experiment, which will start operation in 2015. One of its goals is the demonstration of the stellarator concepts steady state capability while operating with fusion relevant plasma parameters. For particle and heat exhaust from the plasma a set of 10 island divertor units is installed in the machine. During the steady state operation they are exposed to a heat flux of up to 10MW/m2 for up to 30 min. Transient, even higher heat fluxes are possible. To guarantee the save operation of W7-X a continues surveillance of the divertor is mandatory, which is realized by a set of 10 infrared cameras observing the divertor surface. These data needs to be evaluated during the experiment identifying defects, surface layers and actual hot spots caused by overheating.