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@ARTICLE{Tokar:827857,
      author       = {Tokar, Mikhail and Beckers, M. and Biel, W.},
      title        = {{E}rosion of installations in ports of a fusion reactor by
                      hot fuel atoms},
      journal      = {Nuclear materials and energy},
      volume       = {12},
      issn         = {2352-1791},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2017-01945},
      pages        = {1298-1302},
      year         = {2017},
      abstract     = {Charge-exchange interactions between plasma ions and
                      neutrals, recycling from the first wall of a fusion reactor,
                      generate c-x atoms of high energy. These may get into
                      openings of diagnostic ports in the wall, leading to
                      enhanced erosion of installations there, e.g., first
                      mirrors. The energetic spectra of c-x atoms are modeled with
                      the plasma density, electron and ion temperatures varying
                      across the flux surfaces and by taking into account the
                      inhomogeneity of the neutral density along the surfaces due
                      to the absence of recycling at the opening position. The
                      rate of erosion caused by physical sputtering with hot atoms
                      on installations inside the port is computed for the plasma
                      conditions expected in the DEMO fusion reactor, for several
                      fusion relevant materials (beryllium, iron, molybdenum and
                      tungsten), versus the port opening radius and clearance to
                      the installation surface},
      cin          = {IEK-4},
      ddc          = {333.7},
      cid          = {I:(DE-Juel1)IEK-4-20101013},
      pnm          = {174 - Plasma-Wall-Interaction (POF3-174) / HITEC -
                      Helmholtz Interdisciplinary Doctoral Training in Energy and
                      Climate Research (HITEC) (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF3-174 / G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000417293300216},
      doi          = {10.1016/j.nme.2016.12.015},
      url          = {https://juser.fz-juelich.de/record/827857},
}