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Electron density calculation based on Stark broadening of D Balmer line from detached plasma in EAST tungsten divertor

文献类型：期刊论文

作者Xu, Feng1,2; Ding, Fang1; Chen, Xiahua1,2; Wang, Liang1; Xu, Jichan1,2; Hu, Zhenhua1; Mao, Hongmin1; Luo, Guangnan1; Yang, Zhongshi1; Chen, Jingbo1,2
刊名PLASMA SCIENCE & TECHNOLOGY
出版日期2018-10-01
卷号20期号:10页码:7
关键词Stark broadening electron density detachment
ISSN号1009-0630
DOI10.1088/2058-6272/aad226
通讯作者Ding, Fang(fding@ipp.ac.cn)
英文摘要The electron density within the volume of the tungsten divertor of the Experimental Advanced Superconducting Tokamak (EAST) is calculated based on D-epsilon line (396.9 nm) Stark broadening (SB) measurements. The quasistatic approximation is employed in the SB calculation of the D-epsilon line. The influences of other broadening mechanisms on the calculation error of electron density have been evaluated. The SB method is applied to the study of spatial distribution and time evolution of the electron density in the W divertor. Two electron density bands are observed in the detached divertor plasma during an L-mode discharge sustained by low hybrid wave (LHW) heating, which could be related to the striated particle flux distribution induced by LHW. After the onset of detachment, the upper electron density band corresponding to outer strike point firstly increases then decreases, while the lower density band corresponding to striated particle flux increases continually although the electron densities from Langmuir Probes at the divertor plate keep a descending trend. This could indicate a downward movement of the radiation region that approximately moves along the magnetic field lines after the onset of detachment.
WOS关键词EMISSION
资助项目National Key Research and Development Program of China[2017YFA0402500] ; National Natural Science Foundation of China[11575243] ; National Natural Science Foundation of China[11605238] ; National Natural Science Foundation of China[11575242]
WOS研究方向Physics
语种英语
WOS记录号WOS:000442458500001
出版者IOP PUBLISHING LTD
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 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National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/38052]  
专题合肥物质科学研究院_中科院等离子体物理研究所
通讯作者Ding, Fang
作者单位1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Feng,Ding, Fang,Chen, Xiahua,et al. Electron density calculation based on Stark broadening of D Balmer line from detached plasma in EAST tungsten divertor[J]. PLASMA SCIENCE & TECHNOLOGY,2018,20(10):7.
APA Xu, Feng.,Ding, Fang.,Chen, Xiahua.,Wang, Liang.,Xu, Jichan.,...&Li, Kedong.(2018).Electron density calculation based on Stark broadening of D Balmer line from detached plasma in EAST tungsten divertor.PLASMA SCIENCE & TECHNOLOGY,20(10),7.
MLA Xu, Feng,et al."Electron density calculation based on Stark broadening of D Balmer line from detached plasma in EAST tungsten divertor".PLASMA SCIENCE & TECHNOLOGY 20.10(2018):7.

入库方式： OAI收割

来源：合肥物质科学研究院

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