% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Goniche:835984,
      author       = {Goniche, M. and Dumont, R. J. and Bobkov, V. and Buratti,
                      P. and Brezinsek, S. and Challis, C. and Colas, L. and
                      Czarnecka, A. and Drewelow, P. and Fedorczak, N. and Garcia,
                      J. and Giroud, C. and Graham, M. and Graves, J. P. and
                      Hobirk, J. and Jacquet, P. and Lerche, E. and Mantica, P.
                      and Monakhov, I. and Monier-Garbet, P. and Nave, M. F. F.
                      and Noble, C. and Nunes, I. and Pütterich, T. and Rimini,
                      F. and Sertoli, M. and Valisa, M. and Van Eester, D.},
      title        = {{I}on cyclotron resonance heating for tungsten control in
                      various {JET} {H}-mode scenarios},
      journal      = {Plasma physics and controlled fusion},
      volume       = {59},
      number       = {5},
      issn         = {1361-6587},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {FZJ-2017-05109},
      pages        = {055001},
      year         = {2017},
      abstract     = {Ion cyclotron resonance heating (ICRH) in the hydrogen
                      minority scheme provides central ion heating and acts
                      favorably on the core tungsten transport. Full wave modeling
                      shows that, at medium power level (4 MW), after collisional
                      redistribution, the ratio of power transferred to the ions
                      and the electrons vary little with the minority (hydrogen)
                      concentration n H/n e but the high-Z impurity screening
                      provided by the fast ions temperature increases with the
                      concentration. The power radiated by tungsten in the core of
                      the JET discharges has been analyzed on a large database
                      covering the 2013–2014 campaign. In the baseline scenario
                      with moderate plasma current (I p = 2.5 MA) ICRH modifies
                      efficiently tungsten transport to avoid its accumulation in
                      the plasma centre and, when the ICRH power is increased, the
                      tungsten radiation peaking evolves as predicted by the
                      neo-classical theory. At higher current (3–4 MA), tungsten
                      accumulation can be only avoided with 5 MW of ICRH power
                      with high gas injection rate. For discharges in the hybrid
                      scenario, the strong initial peaking of the density leads to
                      strong tungsten accumulation. When this initial density
                      peaking is slightly reduced, with an ICRH power in excess of
                      4 MW,very low tungsten concentration in the core (~10−5)
                      is maintained for 3 s. MHD activity plays a key role in
                      tungsten transport and modulation of the tungsten radiation
                      during a sawtooth cycle is correlated to the fishbone
                      activity triggered by the fast ion pressure gradient.},
      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:000398500100001},
      doi          = {10.1088/1361-6587/aa60d2},
      url          = {https://juser.fz-juelich.de/record/835984},
}