End-shorting and electric field in edge plasmas with application to field-reversed configurations

The shorting of open field lines where they intersect external boundaries strongly modifies the transverse electric field all along the field lines. The modified electric field is found by an extension of the familiar Boltzmann relation for the electric potential. This leads to a prediction of the e...

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Bibliographic Details
Published in:Physics of plasmas 2002-09, Vol.9 (9), p.3851-3856
Main Author: Steinhauer, Loren C.
Format: Article
Language:English
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Summary:The shorting of open field lines where they intersect external boundaries strongly modifies the transverse electric field all along the field lines. The modified electric field is found by an extension of the familiar Boltzmann relation for the electric potential. This leads to a prediction of the electric drift. Flow generation by electrical shorting is applied here to three aspects of elongated field-reversed configurations: plasma rotation rate; the particle-loss spin-up mechanism; and the sustainability of the rotating magnetic field current drive method.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.1494823