@article{01HKPZFDY4ENS5A7MQ2NZAQF59,
  abstract     = {{The required heating power, P-LH, to access the high confinement regime (H-mode) in tritium containing plasmas is investigated in JET with ITER-like wall at a toroidal magnetic field of B-t = 1.8 T and a plasma current of I-p = 1.7 MA. PLH, also referred to as the L-H power threshold, is determined in plasmas of pure tritium as well as mixtures of hydrogen with tritium (H-T) and mixtures of deuterium with tritium (D-T), and is compared to the L-H power threshold in plasmas of pure hydrogen and pure deuterium. It is found that, for otherwise constant parameters, P-LH is not the same in plasmas with the same effective isotope mass, A(eff), when they differ in their isotope composition. Thus, A(eff) is not sufficient to describe the isotope effect of P-LH in a consistent manner for all considered isotopes and isotope mixtures. The electron temperature profiles measured at the L-H transition in the outer half of the radius are very similar for all isotopes and isotope mixtures, despite the fact that the L-H power threshold varies by a factor of about six. This finding, together with the observation of an offset linear relation between the L-H power threshold, P-LH, and an effective heat diffusivity, ?(eff), indicates that the composition-dependent heat transport in the low confinement mode (L-mode) determines, how much power is needed to reach the necessary electron temperatures at the edge, and hence P-LH.}},
  articleno    = {{054001}},
  author       = {{Birkenmeier, G. and  Solano, E. R. and  Carvalho, I. S. and  Hillesheim, J. C. and  Delabie, E. and  Lerche, E. and  Taylor, D. and  Gallart, D. and  Mantsinen, M. J. and  Silva, C. and  Angioni, C. and  Ryter, F. and  Carvalho, P. and  Fontana, M. and  Pawelec, E. and  Silburn, S. A. and  Siren, P. and  Aleiferis, S. and  Bernardo, J. and  Boboc, A. and  Douai, D. and  Puglia, P. and  Jacquet, P. and  Litherland-Smith, E. and  Jepu, I and  Kos, D. and  Sun, H. J. and  Shaw, A. and  King, D. and  Viola, B. and  Henriques, R. and  Kirov, K. K. and  Baruzzo, M. and  Garcia, J. and  Hakola, A. and  Huber, A. and  Joffrin, E. and  Keeling, D. and  Kappatou, A. and  Lennholm, M. and  Lomas, P. and  de la Luna, E. and  Maggi, C. F. and  Mailloux, J. and  Maslov, M. and  Rimini, F. G. and  Vianello, N. and Verdoolaege, Geert and  Weisen, H. and  Wischmeier, M.}},
  issn         = {{0741-3335}},
  journal      = {{PLASMA PHYSICS AND CONTROLLED FUSION}},
  keywords     = {{L-H transition,D-T plasma operation,isotope effects,transport,isotope mixtures,tritium plasmas,REGIME}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{10}},
  title        = {{The role of isotope mass and transport for H-mode access in tritium containing plasmas at JET with ITER-like wall}},
  url          = {{http://doi.org/10.1088/1361-6587/acc423}},
  volume       = {{65}},
  year         = {{2023}},
}

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