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@ARTICLE{COSFELD:893281,
      author       = {COSFELD, J. and DREWS, P. and BLACKWELL, B. and JAKUBOWSKI,
                      M. and NIEMANN, H. and ZHANG, D. and FENG, Y.},
      title        = {{N}umerical estimate of multi-species ion sound speed of
                      {L}angmuir probe interpretations in the edge plasmas of
                      {W}endelstein 7-{X}},
      journal      = {Plasma science $\&$ technology},
      volume       = {22},
      number       = {8},
      issn         = {1009-0630},
      address      = {Bristol},
      publisher    = {IOP},
      reportid     = {FZJ-2021-02671},
      pages        = {085102 -},
      year         = {2020},
      abstract     = {The recently modified EMC3-EIRENE code package has been
                      widely applied as an edge-plasmaanalysis tool and resulted
                      in successful validation against various measured trends
                      seen instellarator and tokamak plasma boundaries. It has
                      been shown that the code package applied forWendelstein 7-X
                      (W7-X) discharges in the interpretive mode can assess the
                      impact of impurityeffects on the electron density, measured
                      by a set of Langmuir probes. In particular the
                      spatialquantification of impurities and effects from the
                      effective charge state Zeff and effective massmeff, which
                      are non-trivial to record by diagnostics, were examined. The
                      results showed thatearlier assumptions of the effective
                      charge-state distribution and effective mass for
                      reportedLangmuir probe measurements must be revised.
                      Subsequently, reprocessing these measurementswith
                      code-interpreted spatial profiles of the effective charge
                      state and effective mass led to anoverall improved physical
                      consistency.},
      cin          = {JARA-HPC / IEK-4},
      ddc          = {530},
      cid          = {$I:(DE-82)080012_20140620$ / I:(DE-Juel1)IEK-4-20101013},
      pnm          = {172 - Tokamak Physics (POF3-172) / 174 -
                      Plasma-Wall-Interaction (POF3-174) / 574 - Theory, modelling
                      and simulation (POF3-574) / 89574 - Theory, modelling and
                      simulation (POF2-89574) / Predictive EMC3-EIRENE modelling
                      and diagnostic interpretation for Wendelstein 7-X and EAST
                      $(jiek42_20180501)$ / Predictive EMC3-EIRENE modelling and
                      diagnostic interpretation for Wendelstein 7-X and EAST
                      $(jiek42_20190501)$},
      pid          = {G:(DE-HGF)POF3-172 / G:(DE-HGF)POF3-174 /
                      G:(DE-HGF)POF3-574 / G:(DE-HGF)POF2-89574 /
                      $G:(DE-Juel1)jiek42_20180501$ /
                      $G:(DE-Juel1)jiek42_20190501$},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000537062200001},
      doi          = {10.1088/2058-6272/ab8974},
      url          = {https://juser.fz-juelich.de/record/893281},
}