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@ARTICLE{Alberti:904032,
      author       = {Alberti, G. and Sala, M. and Romazanov, J. and Uccello, A.
                      and Dellasega, D. and Passoni, M.},
      title        = {{ERO}2.0 modelling of nanoscale surface morphology
                      evolution},
      journal      = {Nuclear fusion},
      volume       = {61},
      number       = {6},
      issn         = {0029-5515},
      address      = {Vienna},
      publisher    = {IAEA},
      reportid     = {FZJ-2021-05602},
      pages        = {066039 -},
      year         = {2021},
      abstract     = {Plasma–material interaction (PMI) in tokamaks determines
                      the life-time of first-wall (FW) components. Due to PMI, FW
                      materials are eroded and transported within the device.
                      Erosion is strongly influenced by the original morphology of
                      the component, due to particle redeposition on near surface
                      structures and to the changing of impact angle
                      distributions, which results in an alteration of the
                      sputtering effects. The Monte-Carlo impurity transport code
                      ERO2.0 is capable of modelling the erosion of non-trivial
                      surface morphologies due to plasma irradiation. The surface
                      morphology module was validated against experimental data
                      with satisfactory agreement. In this work, we further
                      progress in the validation of the ERO2.0 capabilities by
                      modelling both numerically generated surfaces as well as
                      real surfaces, generated using atomic force microscopy (AFM)
                      measurements of reference tungsten samples. The former are
                      used to validate ERO2.0 against one of the morphology
                      evolution models present in literature, in order to outline
                      the conditions for reliable code solutions. Modifications
                      induced in AFM-generated surfaces after argon and helium
                      plasma irradiation are compared, showing a similar
                      post-exposure morphology, mostly dominated by surface
                      smoothing. Finally, the ERO2.0 morphology retrieved after He
                      plasma exposure is compared to experimentally-available
                      scanning electron microscopy and AFM measurements of the
                      same surface morphology exposed in the linear plasma device
                      GyM, showing the need for further improvements of the code,
                      while a good agreement between experimental and simulated
                      erosion rate is observed.},
      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:000656670200001},
      doi          = {10.1088/1741-4326/abfcde},
      url          = {https://juser.fz-juelich.de/record/904032},
}