Abstract
Local particle and heat transport coefficients have been measured in a temperature scan of neutral-beam–heated plasmas with n, , and 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 , where α=1.5–2.5. The observed temperature dependence is predicted by numerical calculations of anomalous transport due to trapped-particle drift-type microinstabilities.
- Received 4 September 1990
DOI:https://doi.org/10.1103/PhysRevLett.66.421
©1991 American Physical Society