Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
Rapid Communications
Possibility of Poloidal Current Drive by Low Energy Axial NBI into Field-Reversed Configuration Plasma
Takayuki WATANABETakahiro URANOToshiki TAKAHASHI
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2013 Volume 8 Pages 1203015

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Abstract

Possibility of the poloidal current drive by low energy axial neutral beam injection is studied by a Monte-Carlo method for field-reversed configuration (FRC) plasma. In order to suppress the end-loss rate of beam ions, it is found that the separatrix beta of target plasma should be low (presumably less than 0.1). If a beam source of a few 100 eV can be developed, beam ions could be trapped inside the separatrix and poloidal current drive would be possible even for FRC plasma embedded in the open-field region.

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© 2013 by The Japan Society of Plasma Science and Nuclear Fusion Research
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