Evidence of inward toroidal momentum convection in the JET tokamak

T. 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 20m/s, has been found. Both results are consistent with gyrokinetic simulations. This evidence is complemented in plasmas with internal transport barriers. © 2009 The American Physical Society.
Original languageEnglish
Article number075001
Pages (from-to)-
JournalPhysical Review Letters
Volume102
Issue number7
DOIs
Publication statusPublished - 17 Feb 2009
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Tala, T., Zastrow, K-D., Ferreira, J., Mantica, P., Naulin, V., Peeters, A. G., ... 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