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DPG

Kiel 2011 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 19: Poster: Hochtemperaturplasmen: Experiment und Diagnostik

P 19.1: Poster

Mittwoch, 30. März 2011, 16:30–18:30, Foyer

Observations of Plasma Response to RMP using Fast Movable Magnetic Probe on TEXTOR — •Yao Yang, Yunfeng Liang, Youwen Sun, Tao Zhang, Jochen Aßmann, Günter Bertschinger, Hubert Jaegers, Hans Rudolf Koslowski, Jonathan Pearson, Bernd Schweer, Christopher Wiegmann, and Yuhong Xu — Institute of Energy and Climate Research/Plasma Physics, Forschungszentrum Jülich GmbH, Association EURATOM-FZJ, Partner in the Trilateral Euregio Cluster, Jülich, Germany

Plasma response to resonant magnetic perturbation fields (RMPs) is important for understanding the physical mechanism of instability control using RMP fields in the next generation of fusion devices, i.e. ITER. Such an investigation has been carried out in TEXTOR under different dynamic ergodic divertor (DED) configurations. The perturbed magnetic field is measured by the Fast Movable Magnetic Probe (FMMP) installed at the outer equatorial plane (low-field side). Preliminary results show that the perturbed plasma edge magnetic topology is different from the case simulated with a vacuum assumption. Plasma response to RMP depends strongly on both the location of the resonant rational flux surface and the frequency difference between the drift of the rational surface in the plasma and the external perturbation.

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