Evidence of inward toroidal momentum convection in the JET tokamak

Tuomas Tala, K.-D. Zastrow, J. Ferreira, P. Mantica, V. Naulin, A. G. Peeters, G. Tardini, M. Brix, G. Corrigan, C. Giroud, D. Strintzi

    Research output: Contribution to journalArticleScientificpeer-review

    75 Citations (Scopus)


    Experiments have been carried out on the Joint European Torus tokamak to determine the diffusive and convective momentum transport. Torque, injected by neutral beams, was modulated to create a periodic perturbation in the toroidal rotation velocity. Novel transport analysis shows the magnitude and profile shape of the momentum diffusivity are similar to those of the ion heat diffusivity. A significant inward momentum pinch, up to 20  m/s, has been found. Both results are consistent with gyrokinetic simulations. This evidence is complemented in plasmas with internal transport barriers.
    Original languageEnglish
    Article number075001
    Number of pages4
    JournalPhysical Review Letters
    Issue number7
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed


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