Transport equations for lower hybrid waves in a turbulent plasma

ORAL

Abstract

Injection and control of intense lower hybrid (LH) wave spectra is required to achieve steady state tokamak operation in the new WEST tokamak at CEA France. The tungsten [W] environment [E] steadytstate [S] tokamak [T] has two high-power [20MW] lower hybrid antennas launching 3.7 GHz polarized waves for steady fusion-grade plasmas control. The wave propagation and scattering is described in by ray equations in the presence of the drift wave turbulence. Theory for the wave transport equations for propagation of the wave momentum and energy densities are derived from the Wigner function method of QM. The limits of the diffraction and scattering for ray transport theory are established. Comparisons are made between the wave propagation in WEST and ITER tokamaks.

*Supported by the University of Texas at Austin; PIIM/CNRS at Aix-Marseille University and University of Sao Paulo.

–

Authors

  • Jose Mendonca

    • IPFN, Instituto Superior Tecnico, 1049-001 Lisboa, Portugal
    • GoLP/Instituto de Plasmas e Fus\~ao Nuclear, Instituto Superior T\'ecnico, Universidade de Lisboa, Lisbon, Portugal

  • W. Horton

    • University of Texas at Austin
    • IFS, The University of Texas at Austin
    • The University of Texas at Austin
    • Institute for Fusion Studies, University of Texas at Austin

  • R.M.O. Galvao

    • Instituto de Fisica, Universidade de Sao Paulo, Sao Paulo SP, 05508-090 Brasil

  • Y. Elskens

    • Aix-Marseille University, Saint Jerome, 13397 Marseille Cedex 20, France