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Analysis of rotating mhd perturbations to identify disruptive phases in TCV tokamak

Alessi E.; Capano M.G.; Pau A.; Sozzi C.; the EUROfusion MST1 team and the TCV3

Conference: 46th EPS Conference on Plasma Physics, pp. 1 - 4 , Milano - italy , 8 - 12 July 2019 Year: 2019
ISTP Authors:
Carlo Sozzi
Edoardo Alessi

Keywords: , ,
Research Activitie:

The presence of rotating MHD instability is often a clue of unhealthy plasma conditions (e.g., large NTM Islands, or impurity accumulation, et cetera), which may justify the early and safe termination of a discharge. However, a similar approach would lead to terminate also discharges that can be recovered. The application of advanced RT processing, like Singular Value Decomposition (SVD), to MHD signals can provide additional information helpful, in principle, to disentangle such ambiguity.

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