Abstract
Particle and energy flux analysis in the edge region based on measured profiles are presented for one discharge condition of the Texas Experimental Tokamak (TEXT). The results are compared with measurements of fluctuation induced transport and with the predictions of two theoretical models for turbulence. Electrostatic turbulence can account for most of the total particle flux and the convected heat flux at the limiter. The scaling of the radial transport in the scrape-off layer can be accounted for by the fluctuations. In low density discharges the conducted heat flux cannot be attributed only to the measured fluctuations. For high density discharges, electrostatic fluctuations may be able to account for the conducted heat flux. The radial scaling of the particle flux from the resistivity gradient model agrees within a factor of three in the edge with the observed profile.
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