Quasi-optical electron cyclotron emission imaging diagnostic advancements on the J-TEXT tokamak

被引:11
作者
Xie, X. L. [1 ]
Zhou, J. [1 ]
Zhu, Y. [2 ]
Pan, X. M. [1 ]
Zhou, H. [1 ]
Yu, G. [2 ]
Luhmann, N. C. [2 ]
Zhuang, G. [3 ]
Yang, Z. J. [1 ]
机构
[1] Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, Int Joint Res Lab Magnet Confinement Fus & Plasma, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Peoples R China
[2] Univ Calif Davis, Davis Davis, Davis, CA 95616 USA
[3] Univ Sci & Technol China, Sch Phys Sci, Dept Engn & Appl Phys, Hefei 230026, Anhui, Peoples R China
基金
中国国家自然科学基金;
关键词
Tokamak; Electron cyclotron emission imaging diagnostics; Major optics system; Local oscillator optics system;
D O I
10.1016/j.fusengdes.2020.111636
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
The new quasi-optical electron cyclotron emission imaging (ECEI) diagnostic system on the J-TEXT tokamak has been developed and characterized. The quasi-optical system consists of two subsystems: the major imaging optics system for plasma imaging and the local oscillator (LO) optics system to drive the mixers in the antenna array. For the updated demands, some modifications and adaptations are accomplished on the major imaging optics. The vertical zoom ratio, focus capability, and field curvature have been measured on the J-TEXT facility, with good matching with the simulation results. For the various experimental requirements on J-TEXT, the remote control system is adopted for the major imaging optics. As for LO optics systems, spherical LO optics and hyperbolic LO optics have demonstrated high performance. Uniform power deposition has been optimized to drive all mixers and minimize insertion loss.
引用
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页数:9
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