Physical model of current drive by ac helicity injection
It is shown that the ac helicity injection current drive described by Jensen and Chu and by Bevir and Gray can alternately be deduced from the pseudoelectric field ~<[bold U]-tilde ×[bold B]-tilde>/c produced by oscillating velocity and magnetic field vectors [bold U]-tilde and [bold B]-tilde (here < > denote time average).
© 1984 American Institute of Physics. Received 18 April 1984; accepted 9 May 1984. The author wishes to thank Dr. T.H. Jensen, Dr. S. Zweben, and Dr. P. Liewer for several stimulating discussions. This work was supported by National Science Foundation Grant No. ECS-8113533.
Published - BELpof84.pdf