中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 合肥物质科学研究院
  3. 中国科学院合肥物质科学研究院
Spectroscopic analysis of tungsten spectra in extreme-ultraviolet range of 10-480 ? observed from EAST tokamak with full tungsten divertor

文献类型：期刊论文

作者Zhang, Wenmin1,5; Zhang, Ling5; Morita, Shigeru2; Cheng, Yunxin5; Zhang, Fengling1,5; Hu, Ailan5; Zhou, Chengxi5; Li, Zhengwei3,5; Cao, Yiming3,5; Ma, Jiuyang1,5
刊名PHYSICA SCRIPTA
出版日期2024-10-01
卷号99
关键词EAST plasma tungsten burst extreme ultraviolet spectra tungsten lines
ISSN号0031-8949
DOI10.1088/1402-4896/ad770a
通讯作者Zhang, Ling(zhangling@ipp.ac.cn)
英文摘要Tungsten spectra in extreme ultraviolet (EUV) wavelength range of 10-480 & Aring; have been observed from high-temperature plasmas in Experimental Advanced Superconducting Tokamak (EAST) with full tungsten divertor using four fast-time-response EUV spectrometers of EUV_Short (5-45 & Aring;), EUV_Long_a (40-180 & Aring;), EUV_Long_c (130-330 & Aring;) and EUV_Long_b (270-480 & Aring;) and two space-resolved EUV spectrometers of EUV_Short2_d (45-70 & Aring;) and EUV_Long2_d (40-130 & Aring;). The wavelength of measured spectra is accurately calibrated based on several well-known spectral lines emitted from low-Z (He, Li, C, N and O), medium-Z (Fe and Cu) and high-Z (Mo) impurity ions. Measurements of the tungsten spectra were taken from discharges accompanied with a transient tungsten burst event, which creates a pulsed influx of tungsten atoms into the EAST plasma. The tungsten spectra observed before and after the burst event are carefully analyzed with temporal behavior and radial profile distribution of the tungsten line intensity. As a result, 213 tungsten lines are successfully confirmed in the spectra observed after the tungsten burst, and the results are summarized in tables. These tungsten lines include line identifications of 78 lines of W XXIII - W XLVI (W22+ - W45+) at 10-140 & Aring; and 88 lines of W V - W IX (W4+ - W8+) at 160-480 & Aring;, while 47 tungsten lines at 50-380 & Aring; could not be clarified the transition. In addition, quasi-continuum spectra called unresolved transition array (UTA) from tungsten ions in low- and high-ionization stages are also analyzed in three wavelength ranges of 18-38 & Aring;, 45-70 & Aring; and 150-280 & Aring; at which W XXIII - W XXXVIII (W22+ - W37+), W XXVII - W XLVI (W26+ - W45+) and W VI-W IX (W5+ - W8+) are dominantly emitted, respectively. Through the analysis it is found that charge state distributions of tungsten UTA at 140-220 & Aring; significantly vary with decrease in the electron temperature. Ionization stages of all observed tungsten lines including both isolated and quasi-continuum lines are experimentally reconfirmed by comparing the radial intensity profile with the electron temperature profile. Finally, spectral lines useful for tungsten diagnostic in fusion plasmas are selected and marked in the tables.
WOS关键词BEAM ION-TRAP ; IONIZED TUNGSTEN ; W VIII ; EBIT
资助项目Magnetic Confinement Fusion Energy R&D Program of China[2022YFE03180400] ; Magnetic Confinement Fusion Energy R&D Program of China[2022YFE03020004] ; Magnetic Confinement Fusion Energy R&D Program of China[2019YFE030403] ; National Magnetic Confinement Fusion Energy R&D Program of China[12322512] ; National Natural Science Foundation of China[2025PVA0060] ; National Natural Science Foundation of China[2024PVA0074] ; Chinese Academy of Sciences President's International Fellowship Initiative (PIFI)
WOS研究方向Physics
语种英语
WOS记录号WOS:001310642600001
出版者IOP Publishing Ltd
资助机构Magnetic Confinement Fusion Energy R&D Program of China ; National Magnetic Confinement Fusion Energy R&D Program of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences President's International Fellowship Initiative (PIFI)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/135227]  
专题中国科学院合肥物质科学研究院
通讯作者Zhang, Ling
作者单位1.Univ Sci & Technol China, Hefei 230026, Peoples R China
2.Natl Inst Fus Sci, Toki 5095292, Japan
3.Anhui Univ, Hefei 230601, Peoples R China
4.Univ Buenos Aires, Inst Astron & Fis Espacio, CONICET, RA-1428 Buenos Aires, Argentina
5.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Wenmin,Zhang, Ling,Morita, Shigeru,et al. Spectroscopic analysis of tungsten spectra in extreme-ultraviolet range of 10-480 ? observed from EAST tokamak with full tungsten divertor[J]. PHYSICA SCRIPTA,2024,99.
APA Zhang, Wenmin.,Zhang, Ling.,Morita, Shigeru.,Cheng, Yunxin.,Zhang, Fengling.,...&Liu, Haiqing.(2024).Spectroscopic analysis of tungsten spectra in extreme-ultraviolet range of 10-480 ? observed from EAST tokamak with full tungsten divertor.PHYSICA SCRIPTA,99.
MLA Zhang, Wenmin,et al."Spectroscopic analysis of tungsten spectra in extreme-ultraviolet range of 10-480 ? observed from EAST tokamak with full tungsten divertor".PHYSICA SCRIPTA 99(2024).

入库方式： OAI收割

来源：合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。