Transport during Turbulent Heating in a Tokamak

A model for the University of Texas turbulent torus is described. The prediction of the model shows a strong skin effect, and is in agreement with the experimental data if one saturates the Buneman instability by using the electron-trapping condition and the ionsound instability by using the anomalous collision frequency ${\nu }^A\simeq {10}^{-5\mathrm{}}\left(\frac{T_e}{T_i}\right)\left(\frac{u}{v_e}\right){\omega }_{\mathrm{pe}}$, which correlates with ion tail formation. An interpretation of the laser-scattering temperature measurements is proposed.