Erlangen 2018 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 11: Helmholtz Graduate School - Poster
P 11.16: Poster
Dienstag, 6. März 2018, 16:15–18:15, Redoutensaal
Calibration and Operation of the Soft X-ray Tomography System (XMCTS) and the Mirnov Diagnostic in the Wendelstein 7-X Stellarator — •Natalie Lauf1, Christian Brandt1, Kian Rahbarnia1, Henning Thomsen1, Jonathan Schilling1, Torsten Broszat1, Alexander Card1, Ralph Laube1, Mirko Marquardt1, Timo Schröder1, Torsten Bluhm1, Tamara Andreeva1, Ulrich Neuner1, Manfred Zilker2, and the W7X Team1 — 1Max-Planck-Institut für Plasmaphysik, Wendelsteinstr. 1, 17491 Greifswald, Germany — 2Max-Planck-Institut für Plasmaphysik, Boltzmannstraße 2, Garching, Germany
The soft x-ray multi-camera tomography system (XMCTS) is a new diagnostic implemented for operational phase 1.2a (August - December 2017) of the Wendelstein 7-X fusion experimental stellarator. In current operation, 18 pinhole cameras mounted within the vacuum vessel cover 324 lines of sight and will measure x-ray emission from the plasma. The shape of the magnetic flux surfaces and instability dynamics are reconstructed from this data. Supplementary to this diagnostic are 125 poloidally arranged Mirnov coils measuring changes in the poloidal magnetic field component. Phase differences between coils allow mode numbers to be extracted. Calibration and operation of the XMCTS and the Mirnov diagnostic will be presented here facilitating work during following operational campaigns to correlate the reconstructed dynamics from data acquired by the XMCTS and the Mirnov diagnostics with the associated magnetic configuration and data from complementary diagnostics.