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@ARTICLE{Louche:835988,
      author       = {Louche, F. and Wauters, T. and Ragona, R. and Möller, S.
                      and Durodié, F. and Litnovsky, A. and Lyssoivan, A. and
                      Messiaen, A. and Ongena, J. and Petersson, P. and Rubel, M.
                      and Brezinsek, S. and Linsmeier, Ch. and Schoor, M. Van},
      title        = {{D}esign of an {ICRF} system for plasma–wall interactions
                      and {RF} plasma production studies on {TOMAS}},
      journal      = {Fusion engineering and design},
      volume       = {123},
      issn         = {0920-3796},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2017-05113},
      pages        = {317-320},
      year         = {2017},
      abstract     = {Ion cyclotron wall conditioning (ICWC) is being developed
                      for ITER and W7-X as a baseline conditioning technique in
                      which the ion cyclotron heating and current drive system
                      will be employed to produce and sustain the currentless
                      conditioning plasma. The TOMAS project (TOroidal MAgnetized
                      System, operated at the FZ-Juelich, Germany) proposes to
                      explore several key aspects of ICWC.For this purpose we have
                      designed an ICRF system made of a single strap antenna
                      within a metallic box, connected to a feeding port and a
                      pre-matching system. We discuss the design work of the
                      antenna system with the help of the commercial
                      electromagnetic software CST Microwave Studio®. The
                      simulation results for a given geometry provide input
                      impedance matrices for the two-port system. These matrices
                      are afterwards inserted into various circuit models to
                      assess the accessibility of the required frequency range.The
                      sensitivity of the matching system to uncertainties on
                      plasma loading and capacitance values is notably addressed.
                      With a choice of three variable capacitors we show that the
                      system can cope with such uncertainties. We also demonstrate
                      that the system can cope as well with the high reflected
                      power levels during the short breakdown phase of the RF
                      discharge, but at the cost of a significantly reduced
                      coupled power.Keywords},
      cin          = {IEK-4 / IEK-1},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-4-20101013 / I:(DE-Juel1)IEK-1-20101013},
      pnm          = {174 - Plasma-Wall-Interaction (POF3-174)},
      pid          = {G:(DE-HGF)POF3-174},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000418992000063},
      doi          = {10.1016/j.fusengdes.2017.04.123},
      url          = {https://juser.fz-juelich.de/record/835988},
}