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physics.plasm-ph2024
Observation and characterisation of trapped electron modes in Wendelstein 7-X
A. Krämer-Flecken, J. H. E. Proll, G. Weir +17
In the past, quasi coherent modes were reported for nearly all tokamaks. The general definition describes modes as quasi coherent when the magnitude squared coherence is in the ran…
physics.plasm-ph2024
First experimental observation of zonal flows in the optimized stellarator Wendelstein 7-X
D. Carralero, T. Estrada, J. M. GarcÃa-Regaña +10
In this work, we present the first experimental evidence of the presence of zonal flow (ZF) structures in the optimized stellarator Wendelstein 7-X. Using an assortment of diagnost…