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@ARTICLE{Heinola:837261,
      author       = {Heinola, K. and Likonen, J. and Ahlgren, T. and Brezinsek,
                      S. and De Temmerman, G. and Jepu, I. and Matthews, G. F. and
                      Pitts, R. A. and Widdowson, A.},
      title        = {{L}ong-term fuel retention and release in {JET}
                      {ITER}-{L}ike {W}all at {ITER}-relevant baking temperatures},
      journal      = {Nuclear fusion},
      volume       = {57},
      number       = {8},
      issn         = {1741-4326},
      address      = {Vienna},
      publisher    = {IAEA},
      reportid     = {FZJ-2017-06230},
      pages        = {086024 -},
      year         = {2017},
      abstract     = {The fuel outgassing efficiency from plasma-facing
                      components exposed in JET-ILW has been studied at
                      ITER-relevant baking temperatures. Samples retrieved from
                      the W divertor and Be main chamber were annealed at 350 and
                      240 °C, respectively. Annealing was performed with thermal
                      desoprtion spectrometry (TDS) for 0, 5 and 15 h to study
                      the deuterium removal effectiveness at the nominal baking
                      temperatures. The remained fraction was determined by
                      emptying the samples fully of deuterium by heating W and Be
                      samples up to 1000 and 775 °C,respectively. Results showed
                      the deposits in the divertor having an increasing effect to
                      the remaining retention at temperatures above baking.
                      Highest remaining fractions 54 and 87$ \\% $ were observed
                      with deposit thicknesses of 10 and 40 μm, respectively.
                      Substantially high fractions were obtained in the main
                      chamber samples from the deposit-free erosion zone of the
                      limiter midplane, in which the dominant fuel retention
                      mechanism is via implantation: 15 h annealing resulted in
                      retained deuterium higher than 90$ \\% $ . TDS results from
                      the divertor were simulated with TMAP7 calculations. The
                      spectra were modelled with three deuterium activation
                      energies resulting in good agreement with the experiments.},
      cin          = {IEK-4},
      ddc          = {530},
      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:000404721100002},
      doi          = {10.1088/1741-4326/aa747e},
      url          = {https://juser.fz-juelich.de/record/837261},
}