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Spectral decomposition for collective Thomson scattering based on an improved genetic algorithm

文献类型：期刊论文

作者Zhang, Jingshuo2; Lan, Ting1; Zeng, Qingbin2; Wu, Zhengwei2; Zhuang, Ge2; Xie, Jinlin2
刊名REVIEW OF SCIENTIFIC INSTRUMENTS
出版日期2024-09-01
卷号95
ISSN号0034-6748
DOI10.1063/5.0215734
通讯作者Lan, Ting(lanting@ipp.ac.cn) ; Xie, Jinlin(jlxie@ustc.edu.cn)
英文摘要Collective Thomson scattering (CTS) is a diagnostic technique that obtains ion temperature and ion composition of plasma by spectral decomposition from scattering spectra. Bayesian estimation and least squares fitting are usually applied in this spectral decomposition process. Nevertheless, these spectral decomposition methods strongly rely on measurements of other diagnostic systems, and the measurement errors of other systems would influence the spectral decomposition results. In this article, an improved genetic algorithm is applied to decompose the scattering spectra of CTS. By analyzing the sensitivity of plasma parameters, the width and slope of the scattering spectrum are found to be strongly associated with ion temperature. Based on this correlation relation, a new fitness function is designed to provide a more precise estimation of ion temperature. Meanwhile, adaptive crossover and mutation operators are introduced to solve the premature convergence problem. This improved genetic algorithm with the new fitness function can obtain a more precise ion temperature from scattering spectra of CTS and does not rely on the measurement of other diagnostic systems, which has an extensive application prospect in data processing of CTS.
WOS关键词SENSITIVITY-ANALYSIS
资助项目National Magnetic Confinement Fusion Program of Chinahttps://doi.org/10.13039/501100013282[2022YFE03080001] ; National Magnetic Confinement Energy Program of China[E35AH205B3] ; Anhui Provincial Major Science and Technology Project[12175227] ; National Natural Science Foundation of China
WOS研究方向Instruments & Instrumentation ; Physics
语种英语
WOS记录号WOS:001325266200005
出版者AIP Publishing
资助机构National Magnetic Confinement Fusion Program of Chinahttps://doi.org/10.13039/501100013282 ; National Magnetic Confinement Energy Program of China ; Anhui Provincial Major Science and Technology Project ; National Natural Science Foundation of China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/135746]  
专题中国科学院合肥物质科学研究院
通讯作者Lan, Ting; Xie, Jinlin
作者单位1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
2.USTC, Dept Plasma Phys & Fus Engn, Hefei 230026, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Jingshuo,Lan, Ting,Zeng, Qingbin,et al. Spectral decomposition for collective Thomson scattering based on an improved genetic algorithm[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2024,95.
APA Zhang, Jingshuo,Lan, Ting,Zeng, Qingbin,Wu, Zhengwei,Zhuang, Ge,&Xie, Jinlin.(2024).Spectral decomposition for collective Thomson scattering based on an improved genetic algorithm.REVIEW OF SCIENTIFIC INSTRUMENTS,95.
MLA Zhang, Jingshuo,et al."Spectral decomposition for collective Thomson scattering based on an improved genetic algorithm".REVIEW OF SCIENTIFIC INSTRUMENTS 95(2024).

入库方式： OAI收割

来源：合肥物质科学研究院

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