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@ARTICLE{Bobkov:829654,
      author       = {Bobkov, V. and Aguiam, D. and Baruzzo, M. and Borodin, D.
                      and Borodkina, I. and Brezinsek, S. and Coffey, I. and
                      Colas, L. and Czarnecka, A. and Dumortier, P. and Durodie,
                      F. and Dux, R. and Faugel, H. and Fünfgelder, H. and
                      Giroud, C. and Goniche, M. and Hobirk, J. and Herrmann, A.
                      and Jacquot, J. and Jacquet, Ph. and Kallenbach, A. and
                      Krivska, A. and Klepper, C. C. and Lerche, E. and Menmuir,
                      S. and Milanesio, D. and Maggiora, R. and Monakhov, I. and
                      Nave, F. and Neu, R. and Noterdaeme, J.-M. and Ochoukov, R.
                      and Pütterich, Th. and Reinke, M. and Tuccilo, A. and
                      Tudisco, O. and Van Eester, D. and Wang, Y. and Yang, Q. and
                      Zhang, W. and Delabie, Ephrem},
      title        = {{P}rogress in reducing {ICRF}-specific impurity release in
                      {ASDEX} upgrade and {JET}},
      journal      = {Nuclear materials and energy},
      volume       = {12},
      issn         = {2352-1791},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2017-03315},
      pages        = {1194-1198},
      year         = {2016},
      abstract     = {Use of new 3-strap ICRF antennas with all-tungsten (W)
                      limiters in ASDEX Upgrade results in a reduction of the W
                      sources at the antenna limiters and of the W content in the
                      confined plasma by at least a factor of 2 compared to the
                      W-limiter 2-strap antennas used in the past. The reduction
                      is observed with a broad range of plasma shapes. In multiple
                      locations of antenna frame, the limiter W source has a
                      minimum when RF image currents are decreased by cancellation
                      of the RF current contributions of the central and the outer
                      straps. In JET with ITER-like wall, ITER-like antenna
                      produces about $20\%$ less of main chamber radiation and of
                      W content compared to the old A2 antennas. However the
                      effect of the A2 antennas on W content is scattered
                      depending on which antennas are powered. Experiments in JET
                      with trace nitrogen (N2) injection show that a presence of
                      active ICRF antenna close to the midplane injection valve
                      has little effect on the core N content, both in dipole and
                      in -90° phasing. This indicates that the effect of ICRF on
                      impurity transport across the scape-off-layer is small in
                      JET compared to the dominant effect on impurity sources
                      leading to increased impurity levels during ICRF operation.},
      cin          = {IEK-4 / PGI-5},
      ddc          = {333.7},
      cid          = {I:(DE-Juel1)IEK-4-20101013 / I:(DE-Juel1)PGI-5-20110106},
      pnm          = {174 - Plasma-Wall-Interaction (POF3-174)},
      pid          = {G:(DE-HGF)POF3-174},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000417293300197},
      doi          = {10.1016/j.nme.2016.10.026},
      url          = {https://juser.fz-juelich.de/record/829654},
}