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The effect of a steady azimuthal field on rotating magnetic field current drive

Published online by Cambridge University Press:  13 March 2009

W. K. Bertram
Affiliation:
Australian Atomic Energy Commission Research Establishment, Lucas Heights Research Laboratories, Lock Mail Bag No. 1, Menai, NSW 2234, Australia

Abstract

The method of generating steady azimuthal currents in a cylindrical plasma column by means of a rotating magnetic field is investigated numerically and analytically for the case where an external steady azimuthal magnetic field is applied to the plasma. For a plasma of low resistivity, the effect of imposing a strong azimuthal field is a substantial reduction in the amount of current that can be driven. For a resistive plasma the effect is more complicated. In some cases the azimuthal field enhances current drive as has been observed in recent experiments.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1987

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References

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