NIFS-547

FULL TEXT (PDF, 313 KB)

Author(s):

R. Kanno, N. Nakajima and M. Okamoto

Title:

Electron Heat Transport in a Self-Similar Structure of Magnetic Islands

Date of publication:

Apr. 1998

Key words:

anornalous conduction, confinement, non-Gaussian process, fractal nature, path integral method

Abstract:

A formula for the electron thermal conductivity in a self-similar structure of magnetic islands, e.g. in the edge region of a stellarator equilibrium, has been derived for the collisionless limit. It is described by using the non-Gaussian process with fractal nature. We have shown that the electron thermal conductivity in the edge region is reduced, if magnetic islands are large enough.

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