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@ARTICLE{Estrada:894124,
      author       = {Estrada, T. and Maragkoudakis, E. and Carralero, D. and
                      Windisch, T. and L Velasco, J. and Killer, C. and Andreeva,
                      T. and Geiger, J. and Dinklage, A. and Krämer-Flecken, A.
                      and Wurden, G. A. and Beurskens, M. and Bozhenkov, S. and
                      Damm, H. and Fuchert, G. and Pasch, E.},
      title        = {{I}mpact of magnetic islands on plasma flow and turbulence
                      in {W}7-{X}},
      journal      = {Nuclear fusion},
      volume       = {61},
      issn         = {1741-4326},
      address      = {Vienna},
      publisher    = {IAEA},
      reportid     = {FZJ-2021-03051},
      pages        = {096011},
      year         = {2021},
      abstract     = {The effect of magnetic islands on plasma flow and
                      turbulence has been experimentally investigated in the
                      stellarator W7-X. Magnetic configurations with the 5/5
                      magnetic island positioned at the plasma edge, inside the
                      last closed flux surface, are studied. The main diagnostic
                      used in the present work is a V-band Doppler reflectometer
                      that allows the measurement of the perpendicular plasma flow
                      and density fluctuations with good spatial resolution. A
                      characteristic signature of the 5/5 magnetic island is
                      clearly detected in the perpendicular flow profile. The
                      comparison of the experimental flow and the neoclassically
                      driven E × B flow indicates that the island contribution to
                      the flow is maximum at the island boundaries and close to
                      zero at the island O-point. Besides, a reduction in the
                      density fluctuation level is found nearby the island
                      O-point. The similarities between these observations and
                      those found in other devices and in gyrokinetic simulations
                      are discussed.},
      cin          = {IEK-4},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-4-20101013},
      pnm          = {134 - Plasma-Wand-Wechselwirkung (POF4-134)},
      pid          = {G:(DE-HGF)POF4-134},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000680171700001},
      doi          = {10.1088/1741-4326/ac146f},
      url          = {https://juser.fz-juelich.de/record/894124},
}