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Hybrid simulation of neutral beam injection into a field-reversed configuration

Published online by Cambridge University Press:  20 December 2006

T. TAKAHASHI ,
Y. YAMADA ,
Y. KONDOH ,
M. GOTO ,
T. OKADA ,
Y. HIRANO ,
T. ASAI ,
T. TAKAHASHI  and
Y. TOMITA
T. TAKAHASHI
Affiliation:
Department of Electronic Engineering, Gunma University, Kiryu, Gunma 376-8515, Japan (t-tak@el.gunma-u.ac.jp)
Y. YAMADA
Affiliation:
Department of Electronic Engineering, Gunma University, Kiryu, Gunma 376-8515, Japan (t-tak@el.gunma-u.ac.jp)
Y. KONDOH
Affiliation:
Department of Electronic Engineering, Gunma University, Kiryu, Gunma 376-8515, Japan (t-tak@el.gunma-u.ac.jp)
M. GOTO
Affiliation:
Kanto Polytechnic College, Oyama, Tochigi 323-0813, Japan
T. OKADA
Affiliation:
Maebashi Institute of Technology, Maebashi, Gunma 371-0816, Japan
Y. HIRANO
Affiliation:
National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
T. ASAI
Affiliation:
Nihon University, Chiyoda-ku, Tokyo 101-8308 Japan
T. TAKAHASHI
Affiliation:
Nihon University, Chiyoda-ku, Tokyo 101-8308 Japan
Y. TOMITA
Affiliation:
National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
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Abstract

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A neutral beam injection (NBI) into a field-reversed configuration (FRC) is simulated by the electron-fluid and ion-particle method. The neutral beam particle is injected tangentially to the field-null circle, and the simulation is done on a two-dimensional cross section of the FRC. An initial equilibrium state is obtained from the Grad–Shafranov equation including the beam current term. It is found that the start of radial ion flow is delayed by the NBI.

Type
Papers
Information
Journal of Plasma Physics , Volume 72 , Issue 6 , December 2006 , pp. 891 - 894
Copyright
2006 Cambridge University Press