Installation of New Electron Cyclotron Emission Imaging in LHD

被引：7

作者：

Tsuchiya, Hayato ^{[1
]}

Kuwahara, Daisuke ^{[2
]}

Tokuzawa, Tokihiko ^{[1
]}

Nagayama, Yoshio ^{[3
]}

Takemura, Yuki ^{[1
,4
]}

机构：

[1] Natl Inst Fus Sci, Toki, Gifu 5095292, Japan

[2] Tokyo Univ Agr & Technol, Koganei, Tokyo 1848588, Japan

[3] Nihon Univ, Tokyo 1018308, Japan

[4] SOKENDAI Grad Univ Adv Studies, Toki, Gifu 5095292, Japan

来源：

PLASMA AND FUSION RESEARCH | 2018年 / 13卷

关键词：

ECEI; LHD; multi horn antenna array; microwave optics;

D O I：

10.1585/pfr.13.3402063

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A new electron cyclotron emission imaging antenna was designed and installed outside the torus on LHD. To improve the signal quality, we developed a local oscillator integrated antenna array (LIA), in which each channel has an internal local oscillation supply from a frequency-multiplier-integrated circuit. The labyrinth structure of the optical system comprises five mirrors to protect the LIA from plasma neutron emission. The initial results were obtained from the 2017 LHD experimental campaign. The MHD fluctuations and their fluctuation profiles were observed. (C) 2018 The Japan Society of Plasma Science and Nuclear Fusion Research

引用

页数：4

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