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@ARTICLE{Garkusha:824135,
      author       = {Garkusha, I. E. and Aksenov, N. N. and Byrka, O. V. and
                      Makhlaj, V. A. and Herashchenko, S. S. and Malykhin, S. V.
                      and Petrov, Y. Y. and Staltsov, V. V. and Surovitskiy, S. V.
                      and Wirtz, Marius and Linke, Jochen and Sadowski, M. J. and
                      Skladnik-Sadowska, E.},
      title        = {{S}imulation of {P}lasma-{S}urface {I}nteractions in a
                      {F}usion {R}eactor by {M}eans of {QSPA} {P}lasma {S}treams:
                      {R}ecent {R}esults and {P}rospects},
      journal      = {Physica scripta},
      volume       = {91},
      number       = {9},
      issn         = {0031-8949},
      address      = {Bristol},
      publisher    = {IoP Publ.},
      reportid     = {FZJ-2016-06756},
      pages        = {094001},
      year         = {2016},
      abstract     = {This paper is devoted to plasma–surface interaction
                      issues at high heat-loads which are typical for fusion
                      reactors. For the International Thermonuclear Experimental
                      Reactor (ITER), which is now under construction, the
                      knowledge of erosion processes and the behaviour of various
                      constructional materials under extreme conditions is a very
                      critical issue, which will determine a successful
                      realization of the project. The most important
                      plasma–surface interaction (PSI) effects in 3D geometry
                      have been studied using a QSPA Kh-50 powerful
                      quasi-stationary plasma accelerator. Mechanisms of the
                      droplet and dust generation have been investigated in
                      detail. It was found that the droplets emission from
                      castellated surfaces has a threshold character and a cyclic
                      nature. It begins only after a certain number of the
                      irradiating plasma pulses when molten and shifted material
                      is accumulated at the edges of the castellated structure.
                      This new erosion mechanism, connected with the edge effects,
                      results in an increase in the size of the emitted droplets
                      (as compared with those emitted from a flat surface). This
                      mechanism can even induce the ejection of sub-mm particles.
                      A concept of a new-generation QSPA facility, the current
                      status of this device maintenance, and prospects for further
                      experiments are also presented},
      cin          = {IEK-2},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-2-20101013},
      pnm          = {174 - Plasma-Wall-Interaction (POF3-174)},
      pid          = {G:(DE-HGF)POF3-174},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000384126400005},
      doi          = {10.1088/0031-8949/91/9/094001},
      url          = {https://juser.fz-juelich.de/record/824135},
}