NIFS-140

FULL TEXT (PDF, 437 KB)


Author(s):

K. Itoh, S. -I. Itoh and A. Fukuyama

Title:

Theory of Anomalous Transport in Toroidal Helical Plasmas

Date of publication:

Mar. 1992

Key words:

anomalous transport, interchange instability, magnetic hill, current diffusivity, torsatron/heliotron

Abstract:

Theoretical model of the anomalous transport in Torsatron/ Heliotron plasmas is developed, based on the current-diffusive interchange instability which is destabilized due to the averaged magnetic hill near edge. Analytic formula of transport coefficient is derived. This model explains the high edge transport, the power degradation and energy confinement scaling law and the enhanced heat-pulse thermal conduction.

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