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@ARTICLE{Eksaeva:866943,
      author       = {Eksaeva, A. and Borodin, D. and Romazanov, J. and
                      Kirschner, A. and Kreter, A. and Eichler, M. and Rasinski,
                      M. and Pospieszczyk, A. and Unterberg, B. and Brezinsek, S.
                      and Linsmeier, Ch. and Tskhakaya, D. and Borodkina, I. and
                      Komm, M.},
      title        = {{S}urface roughness effect on {M}o physical sputtering and
                      re-deposition in the linear plasma device {PSI}-2 predicted
                      by {ERO}2.0},
      journal      = {Nuclear materials and energy},
      volume       = {19},
      issn         = {2352-1791},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2019-05990},
      pages        = {13 - 18},
      year         = {2019},
      abstract     = {Surface morphology and its evolution during the plasma
                      irradiation is known to have a large influence on the
                      erosion and resulting lifetime of plasma-facing components
                      as well as tritium retention. For instance, surface
                      roughness can affect physical sputtering, re-deposition, as
                      well as angular distributions of the sputtered species. In
                      this study the effect of surface roughness is implemented
                      into the 3D Monte-Carlo code ERO2.0. First modelling results
                      for molybdenum (Mo) irradiated with deuterium (D) in the
                      conditions foreseen for the planned experiments at the
                      linear plasma device PSI-2 are presented. Using the
                      constructed examples of surfaces with various (regular and
                      fractal) roughness types it is shown that the effective
                      sputtering yield decreases for rough surfaces in comparison
                      to smooth ones. The angular distribution of particles
                      escaping from the rough surface collimates with the increase
                      of the surface structure's aspect ratio. Moreover, the
                      modelling predicts flattening of the surface during the
                      plasma irradiation due to the preferable re-deposition in
                      the “valleys” and sputtering of the peak tops.},
      cin          = {IEK-4 / JARA-HPC},
      ddc          = {624},
      cid          = {I:(DE-Juel1)IEK-4-20101013 / $I:(DE-82)080012_20140620$},
      pnm          = {174 - Plasma-Wall-Interaction (POF3-174) / 3D Monte-Carlo
                      simulations of plasma-wall interaction and impurity
                      transport in fusion devices $(jiek43_20190501)$},
      pid          = {G:(DE-HGF)POF3-174 / $G:(DE-Juel1)jiek43_20190501$},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000470746100003},
      doi          = {10.1016/j.nme.2019.02.006},
      url          = {https://juser.fz-juelich.de/record/866943},
}