Quasi-optical design and analysis of a remote steering launcher for CFETR ECRH system

• DOI: 10.1016/j.net.2023.12.014
• Publication Date: 2023-12-07T10:43:38Z
• Authors: Zhang Chao; Xiaojie Wang; Dajun Wu; Yunying Tang; Hanlin Wang; Dingzhen Li; Fukun Liu; Muquan Wu; Peiguang Yan; Xiang Gao; Jiangang Li
• Keywords: Beam steering; Radius of curvature; Port (circuit theory)

In order to optimize the operational safety and reliability of upper launcher for CFETR ECRH system, a design NTM control based on remote steering concept is currently being carried out comparison with front equivalent. This paper presents layout analysis quasi-optical system in launcher. A 3D visual tool has been developed which can parameterize modeling, perform general astigmatic beam calculation show accurate propagation path port. Three identical sets modules are arranged launcher, each one consists two fixed double-curvature focusing mirrors, focus reflect beams (−12°–12°) from square corrugated waveguides. The characteristics at resonance layer described, average radius < 100 mm. peak head loads surfaces mirrors 1.63 MW/m2 1.52 MW/m2. position size channel blanket obtained, opening apertures launcher-facing plasma-facing sides module 0.54 m2 0.4 m2, respectively.