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

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    Abstract

    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
    Volume102
    Issue number7
    DOIs
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed

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  • Cite this

    Tala, T., Zastrow, K-D., Ferreira, J., Mantica, P., Naulin, V., Peeters, A. G., Tardini, G., Brix, M., Corrigan, G., Giroud, C., & Strintzi, D. (2009). Evidence of inward toroidal momentum convection in the JET tokamak. Physical Review Letters, 102(7), [075001]. https://doi.org/10.1103/PhysRevLett.102.075001