Plasma and Fusion Research

Volume 14, 3402067 (2019)

Regular Articles

Feasibility Study of Neutral Beam Injection on Chinese First Quasi-Axisymmetric Stellarator (CFQS)
Kunihiro OGAWA1,2), Ryosuke SEKI1,2), Hiroyuki YAMAGUCHI1), Sadayoshi MURAKAMI3), Mitsutaka ISOBE1,2), Akihiro SHIMIZU1), Shigeyoshi KINOSHITA1), Shoichi OKAMURA1), Haifeng LIU4), Yuhong XU4) and CFQS Team1,2,4,5)
1)
National Institute for Fusion Science, National Institutes of Natural Sciences, Toki 509-5292, Japan
2)
SOKENDAI (The Graduate University for Advanced Studies), Toki 509-5292, Japan
3)
Kyoto University, Kyoto 615-8540, Japan
4)
Southwest Jiaotong University, Chengdu, China
5)
Hefei Keye Electro Physical Equipment Manufacturing Co., Ltd, Hefei, China
(Received 6 December 2018 / Accepted 4 March 2019 / Published 16 May 2019)

Abstract

Physics and engineering designs of Chinese First Quasi-axisymmetric Stellarator (CFQS) have been performed under the collaboration between National Institute for Fusion Science and Southwest Jiaotong University. To obtain high plasma parameter and to study the beam ion confinement in quasi-axisymmetric configuration, the installation of neutral beam (NB) injector is planned with CFQS. The feasibility study of NB injection of CFQS is performed by means of beam deposition calculation code (HFREYA) and the guiding center orbit following code (DELTA5D). The injection angle of 48 degrees is most favorable in terms of the deposition and beam ion confinement.

Keywords

CFQS, NBI, deposition, beam ion confinement, quasi-axisymmetric configuration

DOI: 10.1585/pfr.14.3402067

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