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	Assessment of the beam path deflection for a vertically installed microwave interferometer in SUNIST
	Zhong, H.1; Ling, B. L.2; Tan, Y.1; Gao, Z.1
刊名	REVIEW OF SCIENTIFIC INSTRUMENTS
	2016-08-01
卷号	87期号:8页码:083501
DOI	10.1063/1.4959979
文献子类	Article
英文摘要	Microwave interferometry has been widely employed to provide reliable line averaged electron density measurement on plasma devices. For a vertically installed interferometer on a tokamak, the refraction problem, which distorts the beam path and aggravates power loss at the receiving antenna, may become significant if taking the cross section shape into account. Increasing the frequency of the probing microwave can alleviate the distortion, but at the expense of losing the density resolution. To seek for an optimized frequency, previous calculations are mainly based on the cylindrical column geometry which grossly underestimates the deflection of the beam path induced by the plasma shape, and empirical suggestions indicating n(e0)/n(c) = 1/2 similar to 1/3 may not always be the appropriate option. Here a single ray tracing method is applied to estimate the final horizontal deviation at the receiving antenna, which is supposed to represent the level of power loss. The calculation is carried out under the real tokamak geometry in Sino-UNIted Spherical Tokamak (SUNIST) with the cross section parameters obtained from the equilibrium reconstruction, and the result indicates that for a target density of 1.2 x 10(19) m(-3), a frequency of at least 100 GHz is desirable to reduce the power loss to an acceptable level. This would be helpful for the design of a vertically installed interferometer on SUNIST. Published by AIP Publishing.
WOS关键词	MILLIMETER-WAVE INTERFEROMETER
WOS研究方向	Instruments & Instrumentation ; Physics
语种	英语
WOS记录号	WOS:000383880100024
资助机构	NSFC(11261140327 ; NSFC(11261140327 ; NSFC(11261140327 ; NSFC(11261140327 ; NSFC(11261140327 ; NSFC(11261140327 ; NSFC(11261140327 ; NSFC(11261140327 ; NSFC(11261140327 ; NSFC(11261140327 ; NSFC(11261140327 ; NSFC(11261140327 ; NSFC(11261140327 ; NSFC(11261140327 ; NSFC(11261140327 ; NSFC(11261140327 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; 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Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Ministry of Science and Technology of China(2013GB112001 ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; Tsinghua University Initiative Scientific Research Program ; 221 Program ; 221 Program ; 221 Program ; 221 Program ; 221 Program ; 221 Program ; 221 Program ; 221 Program ; 221 Program ; 221 Program ; 221 Program ; 221 Program ; 221 Program ; 221 Program ; 221 Program ; 221 Program ; 11325524 ; 11325524 ; 11325524 ; 11325524 ; 11325524 ; 11325524 ; 11325524 ; 11325524 ; 11325524 ; 11325524 ; 11325524 ; 11325524 ; 11325524 ; 11325524 ; 11325524 ; 11325524 ; 2013GB107001) ; 2013GB107001) ; 2013GB107001) ; 2013GB107001) ; 2013GB107001) ; 2013GB107001) ; 2013GB107001) ; 2013GB107001) ; 2013GB107001) ; 2013GB107001) ; 2013GB107001) ; 2013GB107001) ; 2013GB107001) ; 2013GB107001) ; 2013GB107001) ; 2013GB107001) ; 11175103) ; 11175103) ; 11175103) ; 11175103) ; 11175103) ; 11175103) ; 11175103) ; 11175103) ; 11175103) ; 11175103) ; 11175103) ; 11175103) ; 11175103) ; 11175103) ; 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内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/21682]
专题	合肥物质科学研究院_中科院等离子体物理研究所
作者单位	1.Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Zhong, H.,Ling, B. L.,Tan, Y.,et al. Assessment of the beam path deflection for a vertically installed microwave interferometer in SUNIST[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2016,87(8):083501.
APA	Zhong, H.,Ling, B. L.,Tan, Y.,&Gao, Z..(2016).Assessment of the beam path deflection for a vertically installed microwave interferometer in SUNIST.REVIEW OF SCIENTIFIC INSTRUMENTS,87(8),083501.
MLA	Zhong, H.,et al."Assessment of the beam path deflection for a vertically installed microwave interferometer in SUNIST".REVIEW OF SCIENTIFIC INSTRUMENTS 87.8(2016):083501.

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