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@ARTICLE{Eichler:891432,
      author       = {Eichler, Michael},
      title        = {{I}nvestigation of hydrogen isotope retention mechanisms in
                      beryllium: {H}igh resolution {TPD} measurements},
      journal      = {Nuclear materials and energy},
      volume       = {19},
      issn         = {2352-1791},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2021-01517},
      pages        = {440 - 444},
      year         = {2019},
      abstract     = {The retention of ion-implanted deuterium in beryllium poly-
                      and single crystals at room temperature is studied using
                      high precision temperature programmed desorption
                      spectroscopy (TPD). Slow temperature ramps of 0.01 K/s in
                      combination with well-defined experimental conditions are
                      used to resolve the low temperature desorption regime for
                      the first time revealing three sharp desorption peaks. The
                      comparison to results of a coupled reaction diffusion system
                      (CRDS) model shows, that the corresponding release
                      mechanisms cannot be described by thermally activated rate
                      processes. SEM images of a polycrystalline beryllium sample
                      after implantation of deuterium with 2 keV per D atom show
                      the formation of blisters of roughly 1 µm in diameter.
                      Additionally, cracks on top of the blisters are found as
                      well as spots, on which blisters are peeled off. Both
                      processes are discussed to play a role in the low
                      temperature release regime of the retained deuterium.
                      Investigation of TPD spectra performed on single crystalline
                      beryllium shows a jagged pattern in the low temperature
                      release regime, which can be connected to blisters bursting
                      up, releasing big amounts of deuterium in short time
                      scales.},
      cin          = {IEK-4},
      ddc          = {624},
      cid          = {I:(DE-Juel1)IEK-4-20101013},
      pnm          = {174 - Plasma-Wall-Interaction (POF3-174)},
      pid          = {G:(DE-HGF)POF3-174},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000470746100068},
      doi          = {10.1016/j.nme.2019.03.018},
      url          = {https://juser.fz-juelich.de/record/891432},
}