Physical Review Letters -- October 11, 1999 -- Volume 83, Issue 15, pp. 2969-2972
Steady State Thermoelectric Field-Reversed Configurations
- A. B. Hassam
- Institute for Plasma Research, University of Maryland, College Park, Maryland 20742
- R. M. Kulsrud, R. J. Goldston, H. Ji, and M. Yamada
- Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08544
(Received 2 November 1998)
It is shown that the cross-field thermoelectric force of magnetized plasmas
can maintain field-reversed configurations against resistive diffusion,
resulting in a steady state device attractive for thermonuclear fusion.
If a peaked radial temperature profile is maintained, the thermoelectric
force is in the opposite direction to the usual resistive friction, thus
maintaining the field configuration. The field maintenance is tantamount
to dynamo action, operating even in two dimensions. We show that a steady
state device can be made by simply heating the O-point: no external electric
fields or particle sources are needed. The feasibility of this scheme for
fusion is discussed.
Full paper: pdf file (63 Kb)
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