Plasma and Fusion Research
Volume 8, 1203015 (2013)
Rapid Communications
- Department of Electronic Engineering, Gunma University, 1-5-1 Tenjin-Cho, Gunma 376-8515, Japan
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.
Keywords
field-reversed configuration, neutral beam injection, poloidal current drive, Störmer region, Monte-Carlo simulation
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This paper may be cited as follows:
Takayuki WATANABE, Takahiro URANO and Toshiki TAKAHASHI, Plasma Fusion Res. 8, 1203015 (2013).