Conceptual design and analysis of remote steering system for CFETR ECRH system

Chao Zhang; Xiaojie Wang; Dajun Wu; Yunying Tang; Hanlin Wang; Dingzhen Li; Fukun Liu; Muquan Wu; Peiguang Yan; Xiang Gao; Jiangang Li

Nuclear Engineering and Technology (Feb 2024)

Conceptual design and analysis of remote steering system for CFETR ECRH system

Chao Zhang,
Xiaojie Wang,
Dajun Wu,
Yunying Tang,
Hanlin Wang,
Dingzhen Li,
Fukun Liu,
Muquan Wu,
Peiguang Yan,
Xiang Gao,
Jiangang Li

Affiliations

Chao Zhang: College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
Xiaojie Wang: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, China
Dajun Wu: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, China
Yunying Tang: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, China
Hanlin Wang: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, China; School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui, 230026, China
Dingzhen Li: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, China; School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui, 230026, China
Fukun Liu: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, China
Muquan Wu: College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China; Corresponding author.
Peiguang Yan: College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
Xiang Gao: College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China; Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, China
Jiangang Li: College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China; Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, China; School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui, 230026, China

Journal volume & issue: Vol. 56, no. 2
pp. 451 – 462

Abstract

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In order to optimize the operational safety and reliability of the upper launcher for the CFETR ECRH system, a design of the launcher based on the remote steering concept is currently being carried out for comparison with the front steering equivalent. This paper presents the remote steering system's conceptual design and simulation analysis. A Square Corrugated Waveguide (SCW) of 65 × 65 mm has been designed with an optimized length of 9.35 m. By changing the relative length of the waveguide, the transmission efficiency of the SCW is optimized within the range of steering angles ±12°. Different error factors are investigated in detail, and corresponding acceptable error ranges are provided. Considering these error factors and ignoring ohmic losses and thermal effects, the relative transmission efficiency of the SCW is estimated to be >98 % within the steering angle range. A matching steering unit for the SCW is designed, which consists of an ellipsoidal focusing mirror and a steerable flat mirror. The detailed design of the steerable mirror motion trajectory is presented. Also, the influence of the possible beam incident errors caused by the steering unit on the transmission efficiency is analyzed in detail.

Published in Nuclear Engineering and Technology

ISSN: 1738-5733 (Print)
Publisher: Elsevier
Country of publisher: Korea, Republic of
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Nuclear engineering. Atomic power
Website: http://www.journals.elsevier.com/nuclear-engineering-and-technology

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