[Table of Contents]

Plasma and Fusion Research

Volume 8, 1203015 (2013)

Rapid Communications


Possibility of Poloidal Current Drive by Low Energy Axial NBI into Field-Reversed Configuration Plasma
Takayuki WATANABE, Takahiro URANO and Toshiki TAKAHASHI
Department of Electronic Engineering, Gunma University, 1-5-1 Tenjin-Cho, Gunma 376-8515, Japan
(Received 19 December 2012 / Accepted 7 February 2013 / Published 27 March 2013)

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

DOI: 10.1585/pfr.8.1203015


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This paper may be cited as follows:

Takayuki WATANABE, Takahiro URANO and Toshiki TAKAHASHI, Plasma Fusion Res. 8, 1203015 (2013).