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@ARTICLE{Eksaeva:891414,
      author       = {Eksaeva, Alina and Borodin, D. and Romazanov, J. and
                      Kreter, A. and Pospieszczyk, A. and Dickheuer, S. and
                      Möller, S. and Göths, B. and Rasinski, M. and Knoche, U.
                      and Terra, A. and Kirschner, A. and Borodkina, I. and
                      Eichler, M. and Unterberg, B. and Brezinsek, S. and
                      Linsmeier, Ch and Vassallo, E. and Pedroni, M. and Passoni,
                      M. and Dellasega, D. and Sala, M. and Romeo, F. and
                      Henderson, S. and O’Mullane, M. and Summers, H. and
                      Tskhakaya, D. and Schmid, K.},
      title        = {{ERO}2.0 modelling of the effects of surface roughness on
                      molybdenum erosion and redeposition in the {PSI}-2 linear
                      plasma device},
      journal      = {Physica scripta},
      volume       = {T171},
      issn         = {1402-4896},
      address      = {Stockholm},
      publisher    = {The Royal Swedish Academy of Sciences},
      reportid     = {FZJ-2021-01499},
      pages        = {014057 -},
      year         = {2020},
      abstract     = {The surface morphology of plasma-facing components (PFCs)
                      and its evolution during plasma irradiation has been shown
                      to have a significant effect on the erosion and subsequent
                      transport of sputtered particles in plasma. This in turn can
                      influence the resulting lifetime of PFCs. A model for
                      treatment of the effect of surface roughness on the erosion
                      of PFCs has recently been incorporated into the
                      three-dimensional Monte Carlo code ERO2.0. First simulations
                      have confirmed a significant influence of the assumed
                      surface roughness (for both regular and stochastic
                      numerically constructed samples) on both the effective
                      sputtering yields Yeff and the effective angular
                      distributions of sputtered particles. In this study, a
                      series of experiments at the linear plasma device PSI-2 are
                      conducted to test the effect of surface roughness on the
                      sputtering parameters. Graphite samples prepared with a 100
                      nm molybdenum layer with various surface roughness
                      characteristic sizes (Ra = 110 nm, 280 nm, 600 nm and Ra <
                      20 nm) were exposed to a helium plasma in the PSI-2 linear
                      plasma device at a magnetic field B = 0.1 T. These PSI-2
                      experiments were simulated using ERO2.0 with a surface
                      morphology model. Simulations are able to reproduce the
                      experimentally observed significant suppression of erosion
                      for higher Ra values.},
      cin          = {IEK-4},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-4-20101013},
      pnm          = {174 - Plasma-Wall-Interaction (POF3-174)},
      pid          = {G:(DE-HGF)POF3-174},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000520000600057},
      doi          = {10.1088/1402-4896/ab5810},
      url          = {https://juser.fz-juelich.de/record/891414},
}