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@ARTICLE{Joffrin:172837,
      author       = {Joffrin, E. and Baruzzo, M. and Beurskens, M. and
                      Bourdelle, C. and Brezinsek, S. and Bucalossi, J. and
                      Buratti, P. and Calabro, G. and Challis, C. D. and Clever,
                      M. and Coenen, J. and Delabie, E. and Dux, R. and Lomas, P.
                      and de la Luna, E. and de Vries, P. and Flanagan, J. and
                      Frassinetti, L. and Frigione, D. and Giroud, C. and Groth,
                      M. and Hawkes, N. and Hobirk, J. and Lehnen, M. and
                      Maddison, G. and Mailloux, J. and Maggi, C. F. and Matthews,
                      G. and Mayoral, M. and Meigs, A. and Neu, R. and Nunes, I.
                      and Puetterich, T. and Rimini, F. and Sertoli, M. and
                      Sieglin, B. and Sips, A. C. C. and van Rooij, G. and
                      Voitsekhovitch, I.},
      title        = {{F}irst scenario development with the {JET} new {ITER}-like
                      wall},
      journal      = {Nuclear fusion},
      volume       = {54},
      number       = {1},
      issn         = {1741-4326},
      address      = {Vienna},
      publisher    = {IAEA},
      reportid     = {FZJ-2014-06274},
      pages        = {013011},
      year         = {2014},
      abstract     = {In the recent JET experimental campaigns with the new
                      ITER-like wall (JET-ILW), major progress has been achieved
                      in the characterization and operation of the H-mode regime
                      in metallic environments: (i) plasma breakdown has been
                      achieved at the first attempt and X-point L-mode operation
                      recovered in a few days of operation; (ii) stationary and
                      stable type-I ELMy H-modes with βN ~ 1.4 have been achieved
                      in low and high triangularity ITER-like shape plasmas and
                      are showing that their operational domain at H = 1 is
                      significantly reduced with the JET-ILW mainly because of the
                      need to inject a large amount of gas (above 1022 D s−1) to
                      control core radiation; (iii) in contrast, the hybrid H-mode
                      scenario has reached an H factor of 1.2–1.3 at βN of 3
                      for 2–3 s; and, (iv) in comparison to carbon equivalent
                      discharges, total radiation is similar but the edge
                      radiation is lower and Zeff of the order of 1.3–1.4.
                      Strong core radiation peaking is observed in H-mode
                      discharges at a low gas fuelling rate (i.e. below 0.5 ×
                      1022 D s−1) and low ELM frequency (typically less than 10
                      Hz), even when the tungsten influx from the diverter is
                      constant. High-Z impurity transport from the plasma edge to
                      the core appears to be the dominant factor to explain these
                      observations. This paper reviews the major physics and
                      operational achievements and challenges that an ITER-like
                      wall configuration has to face to produce stable plasma
                      scenarios with maximized performance.},
      cin          = {IEK-4},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-4-20101013},
      pnm          = {135 - Plasma-wall interactions (POF2-135)},
      pid          = {G:(DE-HGF)POF2-135},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000329427100015},
      doi          = {10.1088/0029-5515/54/1/013011},
      url          = {https://juser.fz-juelich.de/record/172837},
}