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Ex-situ diagnosis of deuterium retention and carbon deposition on shaped tungsten castellated blocks exposed in KSTAR by laser-induced breakdown spectroscopy

文献类型：期刊论文

作者Sun, Liying1; Wu, Ding1; Li, Cong1; Zhao, Dongye1,4; Wu, Jing2; Hong, Suk-Ho3; Bang, Eunnam3; Hu, Zhenghua2; Ding, Hongbin1
刊名FUSION ENGINEERING AND DESIGN
出版日期2021-12-01
卷号173
ISSN号0920-3796
关键词Laser-induced breakdown spectroscopy Plasma-wall interaction Fuel retention Carbon deposition Tungsten divertor KSTAR
DOI10.1016/j.fusengdes.2021.112811
通讯作者Wu, Jing(jwu@ipp.ac.cn) ; Ding, Hongbin(hding@dlut.edu.cn)
英文摘要The laser-induced breakdown spectroscopy (LIBS) approach has been used to ex-situ measure the deuterium (D) retention and carbon (C) deposition on the surface of tungsten (W) castellated blocks adopted from the Korea Superconducting Tokamak Advanced Research (KSTAR). The well-resolved D\H spectra with a high signal to noise ratio (S/N) up to 500 has been achieved.The lateral distributions of the deposited C and detained D on the three different shaped divertor blocks (Rounded, Chamfered, Double chamfered) were investigated. The depth of the deposited C layer was also measured as similar to 200 nm to similar to 650 nm based on the spectral line intensity using a self-defined function approach. It was found that the edge shape strongly affects the C and D distribution features, which are dependent on the particle and heat flux arriving on the related area. The features of C and D deposition and their distributions on the different shaped blocks provide valuable information for the theoretical model on plasma-wall interaction. This indicates that LIBS has a unique potential for the diagnosis of impurity deposition and fuel retention in KSTAR or related fusion devices.
WOS关键词ITER ; EROSION ; PLASMA ; WALL
资助项目National Key R&D Program of China[2017YFE0301304] ; National Key R&D Program of China[2017YFA0402502] ; National Key R&D Program of China[2017YFA0402501] ; National Science Foundation of China[11605239] ; National Science Foundation of China[11861131010] ; National Science Foundation of China[12005034] ; Fundamental Research Funds for the Central Universities[DUT20LK14] ; China Postdoctoral Science Foundation[2019M661087]
WOS研究方向Nuclear Science & Technology
语种英语
出版者ELSEVIER SCIENCE SA
WOS记录号WOS:000702697500001
资助机构National Key R&D Program of China ; National Science Foundation of China ; Fundamental Research Funds for the Central Universities ; China Postdoctoral Science Foundation
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/124942]  
专题中国科学院合肥物质科学研究院
通讯作者Wu, Jing; Ding, Hongbin
作者单位1.Dalian Univ Technol, Sch Phys, Key Lab Mat Modificat Laser Ion & Electron Beams, Minist Educ, Dalian 116024, Peoples R China
2.Chinese Acad Sci, Inst Plasma Phys, PO 1126, Hefei 230031, Peoples R China
3.Natl Fus Res Inst, Daejeon, South Korea
4.Southwestern Inst Phys, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Liying,Wu, Ding,Li, Cong,et al. Ex-situ diagnosis of deuterium retention and carbon deposition on shaped tungsten castellated blocks exposed in KSTAR by laser-induced breakdown spectroscopy[J]. FUSION ENGINEERING AND DESIGN,2021,173.
APA Sun, Liying.,Wu, Ding.,Li, Cong.,Zhao, Dongye.,Wu, Jing.,...&Ding, Hongbin.(2021).Ex-situ diagnosis of deuterium retention and carbon deposition on shaped tungsten castellated blocks exposed in KSTAR by laser-induced breakdown spectroscopy.FUSION ENGINEERING AND DESIGN,173.
MLA Sun, Liying,et al."Ex-situ diagnosis of deuterium retention and carbon deposition on shaped tungsten castellated blocks exposed in KSTAR by laser-induced breakdown spectroscopy".FUSION ENGINEERING AND DESIGN 173(2021).

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来源：合肥物质科学研究院

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