Fluctuation and edge-current sustainment in a reversed-field pinch
- 27 July 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 69 (4) , 616-619
- https://doi.org/10.1103/physrevlett.69.616
Abstract
The simple Ohm’s law η= is not satisfied in the a/2≲r≤a region of the REPUTE-1 reversed-field-pinch plasma. Fluctuation-induced electric fields, such as 〈ṽ×B̃〉, are not sufficient to account for η- at the edge. Current diffusion due to magnetic fluctuations, carried by fast electrons rather than bulk cold electrons, sustains the edge parallel equilibrium current.
Keywords
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