MEASUREMENT OF MAGNETIC FLUCTUATION-INDUCED ENERGY-TRANSPORT IN A TOKAMAK

Magnetic fluctuation induced electron energy transport is measured in the Continuous Current Tokamak [R.J. Taylor et al., Phys. Rev. Lett. 6 3, 2365 (1989)] at 0.75 < r/a < 1 for fluctuations with 0 < f < 150 kH z. The flux, produced by electrons traveling parallel to a fluctuating magnetic field, is obtained from the correlation between the fluctuat ions in the parallel heat flux and the radial magnetic field. It was f ound that the magnetic fluctuations do not contribute to the total ene rgy transport except in the vicinity of the q = 2 magnetic surface in the presence of large amplitude Mirnov oscillation.