Bremen 2017 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
P: Fachverband Plasmaphysik
P 15: Helmholtz Graduate School II
P 15.17: Poster
Dienstag, 14. März 2017, 16:30–18:30, HS Foyer
Real Time Defects Detection System for the Protection of Plasma Facing Components(PFCs) in Wendelstein 7-X — •Adnan Ali1,3, Marcin Jakubowski1, Henri Greuner2, Rudolf Neu2,3, Thomas Sunn Pedersen1, and W7-X Team1 — 1Max Planck Institute for Plasma Physics,Wendelsteinstrasse 1, 17491 Greifswald — 2Max Planck Institute for Plasma Physics,Boltzmannstrasse 2, 85748 Garching — 3TUM, Department of Mechanical Engineering, Boltzmannstrasse 15, 85748 Garching
One of the aims of Wendelstein 7-X,an advanced stellarator in Greifswald,is the investigation of quasi-steady state operation of magnetic fusion devices,for which power exhaust is a very important issue. The predominant fraction of the energy lost from the confined plasma region will be removed by 10 so-called island divertors,which can sustain up to 10 MW/m2. In order to protect the divertor elements from overheating and to monitor power depositions,infrared endoscopes will be installed and real-time system is designed for online analysis. Important prerequisite for safe operation of a steady-state device is automatic detection of the hot spots and other abnormal events. The earlier algorithm designed for early detection of defects e.g. hotspots, surface layers and delaminations during the discharge is improved to be compatible with the real time system acquiring the images. It enables automatic detection of the critical events and broadcast them to the main Discharge Control System. This allows dynamic control of the scenario of the discharge in order to assure safe operation of W7-X. The initial tests of the overall system was conducted in GLADIS.