Abstract
Local particle and heat transport coefficients have been measured in a temperature scan of neutral-beam--heated plasmas with {ital n}, {ital I}{sub {ital p}}, and {ital B}{sub {ital c}{ital p}{ital h}{ital i}} held constant. The electron transport is ascertained from a flux analysis of a small density perturbation, and the heat transport is obtained from the equilibrium power balance. The transport coefficients vary as {ital T}{sub {ital e}}{sup {alpha}}, where {alpha}=1.5--2.5. The observed temperature dependence is predicted by numerical calculations of anomalous transport due to trapped-particle drift-type microinstabilities.
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