VUV imaging of type-I ELM filamentary structures and their temporal characteristics on EAST
文献类型：期刊论文
| 作者 | Deng, Rongjing1,2; Ming, Tingfeng1 ; Li, Bang1,2; Shi, Qiqi1,2; Hou, Shanwei1,2; Yang, Shuqi1,2; Liu, Xiaoju1; Liu, Shaocheng1; Li, Guoqiang1; Gao, Xiang1,2,3
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| 刊名 | PLASMA SCIENCE & TECHNOLOGY
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| 出版日期 | 2024-11-01 |
| 卷号 | 26 |
| 关键词 | EAST tokamak VUV imaging filamentary structure temporal characteristics RMP |
| ISSN号 | 1009-0630 |
| DOI | 10.1088/2058-6272/ad621c |
| 通讯作者 | Ming, Tingfeng(tfming@ipp.ac.cn) ; Liang, Yunfeng(y.liang@fz-juelich.de) |
| 英文摘要 | In the H-mode experiments conducted on the Experimental Advanced Superconducting Tokamak (EAST), fluctuations induced by the so-called edge localized modes (ELMs) are captured by a high-speed vacuum ultraviolet (VUV) imaging system. Clear field line-aligned filamentary structures are analyzed in this work. Ion transport induced by ELM filaments in the scrape-off layer (SOL) under different discharge conditions is analyzed by comparing the VUV signals with the divertor probe signals. It is found that convective transport along open field lines towards the divertor target dominates the parallel ion particle transport mechanism during ELMs. The toroidal mode number of the filamentary structure derived from the VUV images increases with the electron density pedestal height. The analysis of the toroidal distribution characteristics during ELM bursts reveals toroidal asymmetry. The influence of resonance magnetic perturbation (RMP) on the ELM size is also analyzed using VUV imaging data. When the phase difference of the coil changes periodically, the widths of the filaments change as well. Additionally, the temporal evolution of the ELMs on the VUV signals provides rise time and decay time for each single ELM event, and the results indicate a negative correlation trend between these two times. |
| WOS关键词 | EDGE LOCALIZED MODES ; PEDESTAL ; DIVERTOR ; SYSTEM ; POWER ; DYNAMICS ; UPGRADE |
| 资助项目 | National Key R&D Program of China[2019YFE03080200] ; National Key R&D Program of China[2022YFE03030001] ; National Key R&D Program of China[2022YFE03050003] ; National Natural Science Foundation of China[12075284] ; National Natural Science Foundation of China[12075283] ; National Natural Science Foundation of China[12175277] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001320907500001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/135670]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Ming, Tingfeng; Liang, Yunfeng |
| 作者单位 | 1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Shenzhen Univ, Coll Optoelect Engn, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Shenzhen 518060, Peoples R China 4.Hiroshima Univ, Grad Sch Adv Sci & Engn, Higashihiroshima 7398527, Japan 5.Forschungszentrum Julich, Inst Energie & Klimaforsch Plasmaphys, D-52425 Julich, Germany |
| 推荐引用方式 GB/T 7714 | Deng, Rongjing,Ming, Tingfeng,Li, Bang,et al. VUV imaging of type-I ELM filamentary structures and their temporal characteristics on EAST[J]. PLASMA SCIENCE & TECHNOLOGY,2024,26. |
| APA | Deng, Rongjing.,Ming, Tingfeng.,Li, Bang.,Shi, Qiqi.,Hou, Shanwei.,...&Liang, Yunfeng.(2024).VUV imaging of type-I ELM filamentary structures and their temporal characteristics on EAST.PLASMA SCIENCE & TECHNOLOGY,26. |
| MLA | Deng, Rongjing,et al."VUV imaging of type-I ELM filamentary structures and their temporal characteristics on EAST".PLASMA SCIENCE & TECHNOLOGY 26(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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