NIFS-189

FULL TEXT (PDF, 387 KB)


Author(s):

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

Title:

Cross Field Ion Motion at Sawtooth Crash

Date of publication:

Oct. 1992

Key words:

Disruption, Sawtooth Crash, Magnetic Stochasticity, Current Profile, Ion Motion, Inertial Effect

Abstract:

Turbulent ion motion which is caused by the sawtooth crash is analyzed in the framework of the magnetic stochasticity model of the sawtooth crash. The average current profile changes much more slowly than the pressure profile after the onset of the crash, so that inhomogeneity of the parallel current along the field line is generated. This causes the perpendicular current with a short scale length, leading to the ion cross field motion.

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