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@ARTICLE{Hamaji:872634,
      author       = {Hamaji, Y. and Tokitani, M. and Kreter, A. and Sakamoto, R.
                      and Sagara, A. and Tamura, H. and Masuzaki, S.},
      title        = {{I}nfluence of thermal shocks on the {H}e induced surface
                      morphology on tungsten},
      journal      = {Nuclear materials and energy},
      volume       = {18},
      issn         = {2352-1791},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2020-00125},
      pages        = {321 - 325},
      year         = {2019},
      abstract     = {In this study, the effect of ELM-like thermal shocks on He
                      induced surface morphology were investigated. A W sample was
                      exposed to pure He plasma. He ion incident energy, flux and
                      fluence were 80 eV, 1 × 1022 /m2/s and 3 × 1025
                      /m2, respectively. Irradiation temperature were
                      approximately 470 and 1100 K. Then, thermal shocks were
                      applied on the sample using focused electron beam. The peak
                      heat flux, pulse duration and base temperature were 500
                      MW/m2, 500 μs and R.T., respectively. After the thermal
                      shocks, He induced morphologies such as holes and periodic
                      undulations were flatten completely at the region exposed to
                      the highest heat flux. At the peripheral regions of the
                      electron beam spot, the hole density increase or partial
                      flattening of morphologies were observed. These results
                      suggested that in order to anticipate surface morphology
                      with He irradiation and ELMs, the peak temperature should
                      play a more important role than base temperature.},
      cin          = {IEK-4},
      ddc          = {624},
      cid          = {I:(DE-Juel1)IEK-4-20101013},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113)},
      pid          = {G:(DE-HGF)POF3-113},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000460107500054},
      doi          = {10.1016/j.nme.2019.01.029},
      url          = {https://juser.fz-juelich.de/record/872634},
}