PPPL-4373

An Expression for the Temperature Gradient in Chaotic Fields

Authors: S.R. Hudson

Abstract:
A coordinate system adapted to the invariant structures of chaotic magnetic fields is constructed. The coordinates are based on a set of ghost-surfaces, defined via an action-gradient flow between the minimax and minimizing periodic orbits. The construction of the chaotic coordinates allows an expression describing the temperature gradient across a chaotic magnetic field to be derived. The results are in close agreement with a numerical calculation.
__________________________________________________

Accepted to: Physics of Plasmas (November 2008)

__________________________________________________

Download PPPL-4373 (pdf 2.4MB 10pp)
__________________________________________________