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@ARTICLE{Manz:837461,
      author       = {Manz, P. and Potzel, S. and Reimold, F. and Wischmeier, M.},
      title        = {{S}tability and propagation of the high field side high
                      density front in the fluctuating state of detachment in
                      {ASDEX} {U}pgrade},
      journal      = {Nuclear materials and energy},
      volume       = {12},
      issn         = {2352-1791},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2017-06374},
      pages        = {1152-1156},
      year         = {2017},
      abstract     = {During detachment a structure of strongly enhanced density
                      develops close to the inner target. Its dynamics is
                      approximated by those of radiative fluctuations appearing at
                      a similar position and studied by means of a
                      time-delay-estimation technique in the ASDEX Upgrade
                      tokamak. Compared to theory the dynamics can be described as
                      follows: at increasing density the ionization front moves
                      upstream to reduce ionization radiation in order to balance
                      the increased recombination radiation. The recombination
                      zone stays close to the target strike point. The parallel
                      motion of the ionization front is determined by the
                      perpendicular neutral motion. The divertor nose constitutes
                      an obstacle for the perpendicular neutral flux from the
                      target to the region above the X-point. Passing into this
                      shadow the neutral flux above the X-point is strongly
                      reduced, the ionization front fades away and the heat flux
                      from upstream can increase the temperature in the
                      recombination region, subsequently reducing recombination
                      and reforming an ionization front below the X-point. A
                      cyclic reformation of the ionization front propagating from
                      below to above the X-point occurs leading to a fluctuation
                      as observed in the experiment.},
      cin          = {IEK-4},
      ddc          = {333.7},
      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:000417293300190},
      doi          = {10.1016/j.nme.2016.10.002},
      url          = {https://juser.fz-juelich.de/record/837461},
}