Electron energy transport inferences from modulated electron cyclotron heating in DIII-D

摘要

Electron thermal energy transport in high-temperature plasmas is poorly understood. A useful characterization of the transport as energy flux versus temperature gradient may be obtained for a modest range of fluxes and gradients about an equilibrium by using modulated electron cyclotron heating. The transport is rapid and stiff (high chi(inc)) at the outside, becoming slower and more diffusive toward the center. (c) 2006 American Institute of Physics.