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@ARTICLE{Wiesen:891444,
      author       = {Wiesen, S. and Groth, M. and Wischmeier, M. and Brezinsek,
                      S. and Jarvinen, A. and Reimold, F. and Aho-Mantila, L.},
      title        = {{P}lasma edge and plasma-wall interaction modelling:
                      {L}essons learned from metallic devices},
      journal      = {Nuclear materials and energy},
      volume       = {12},
      issn         = {2352-1791},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2021-01526},
      pages        = {3 - 17},
      year         = {2017},
      abstract     = {Robust power exhaust schemes employing impurity seeding are
                      needed for target operational scenarios in present day
                      tokamak devices with metallic plasma-facing components
                      (PFCs). For an electricity-producing fusion power plant at
                      power density Psep/R > 15 MW/m divertor detachment is a
                      requirement for heat load mitigation. 2D plasma edge
                      transport codes like the SOLPS code as well as plasma-wall
                      interaction (PWI) codes are key to disentangle relevant
                      physical processes in power and particle exhaust. With
                      increased quantitative credibility in such codes more
                      realistic and physically sound estimates of the life-time
                      expectations and performance of metallic PFCs can be
                      accomplished for divertor conditions relevant for ITER and
                      DEMO. An overview is given on the recent progress of plasma
                      edge and PWI modelling activities for (carbon-free) metallic
                      devices, that include results from JET with the ITER-like
                      wall, ASDEX Upgrade and Alcator C-mod. It is observed that
                      metallic devices offer an opportunity to progress the
                      understanding of underlying plasma physics processes in the
                      edge. The validation of models can be substantially improved
                      by eliminating carbon from the experiment as well as from
                      the numerical system with reduced degrees of freedom as no
                      chemical sputtering from amorphous carbon layers and no
                      carbon or hydro-carbon transport are present. With the
                      absence of carbon as the primary plasma impurity and given
                      the fact that the physics of the PWI at metallic walls is
                      less complex it is possible to isolate the crucial plasma
                      physics processes relevant for particle and power exhaust.
                      For a reliable 2D dissipative plasma exhaust model these
                      are: cross-field drifts, complete kinetic neutral physics,
                      geometry effects (including main-chamber, divertor and
                      sub-divertor structures), SOL transport reflecting also the
                      non-diffusive nature of anomalous transport, as well as
                      transport within the pedestal region in case of significant
                      edge impurity radiation affecting pedestal pressure and
                      hence Psep.},
      cin          = {IEK-1},
      ddc          = {624},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {174 - Plasma-Wall-Interaction (POF3-174)},
      pid          = {G:(DE-HGF)POF3-174},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000417293300003},
      doi          = {10.1016/j.nme.2017.03.033},
      url          = {https://juser.fz-juelich.de/record/891444},
}