EDGE PLASMA HEATING VIA CYCLOTRON HARMONIC INTERACTION
Energy absorption in the edge region via cyclotron harmonic interaction during ICRF plasma heating is examined. It is shown that the electric field ripple caused by the closely spaced Faraday shield conductors gives rise to large effective perpendicular wavenumbers, resulting in strong cyclotron harmonic damping. For the parameters of the ASDEX tokamak, carbon impurity ions with Z = 3 and an initial perpendicular energy of 1 eV could be accelerated to energies in excess of 100 eV in less than 10 muS (corresponding to about 100 cyclotron orbits).
Bibliographic Reference: REPORT IPP 4/234, 1987, AVAILABILITY: MAX-PLANCK-INSTITUT, MUENCHEN, D
Record Number: 1989126087200 / Last updated on: 1989-05-01
Available languages: en