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@ARTICLE{Bobkov:835986,
      author       = {Bobkov, V. and Aguiam, D. and Bilato, R. and Brezinsek, S.
                      and Colas, L. and Faugel, H. and Fünfgelder, H. and
                      Herrmann, A. and Jacquot, J. and Kallenbach, A. and
                      Milanesio, D. and Maggiora, R. and Neu, R. and Noterdaeme,
                      J-M and Ochoukov, R. and Potzel, S. and Pütterich, T. and
                      Silva, A. and Tierens, W. and Tuccilo, A. and Tudisco, O.
                      and Yang, Q. and Zhang, W. and Wang, Y.},
      title        = {{M}aking {ICRF} power compatible with a high-{Z} wall in
                      {ASDEX} {U}pgrade},
      journal      = {Plasma physics and controlled fusion},
      volume       = {59},
      number       = {1},
      issn         = {1361-6587},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {FZJ-2017-05111},
      pages        = {014022 -},
      year         = {2017},
      abstract     = {A comparison of the ASDEX Upgrade 3-strap ICRF antenna data
                      with the linear electro-magnetic TOPICA calculations is
                      presented. The comparison substantiates a reduction of the
                      local electric field at the radially protruding
                      plasma-facing elements of the antenna as a relevant approach
                      for minimizing tungsten (W) sputtering in conditions when
                      the slow wave is strongly evanescent. The measured reaction
                      of the time-averaged RF current at the antenna limiters to
                      the antenna feeding variations is less sensitive than
                      predicted by the calculations. This is likely to have been
                      caused by temporal and spatial fluctuations in the 3D plasma
                      density distribution affected by local non-linear
                      interactions. The 3-strap antenna with the W-coated limiters
                      produces drastically less W sputtering compared to the
                      W-coated 2-strap antennas. This is consistent with the
                      non-linear asymptotic SSWICH-SW calculations for RF
                      sheaths.},
      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:000387334900003},
      doi          = {10.1088/0741-3335/59/1/014022},
      url          = {https://juser.fz-juelich.de/record/835986},
}