Investigation of the dithering-like cycles induced by deuterium pellet injection during ELMy H-mode plasmas on EAST
文献类型：期刊论文
| 作者 | Huang, J.2,3 ; Wang, Y. M.3; Hou, J. L.2,3; Zhang, T.3; Wen, F.3; Xiang, H. M.2,3; Geng, K. N.1,4; Liu, J. B.3; Li, G. S.3; Wu, M. F.2,3
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| 刊名 | NUCLEAR FUSION
 |
| 出版日期 | 2020-08-01 |
| 卷号 | 60 |
| ISSN号 | 0029-5515 |
| 关键词 | pellet injection H-L back transition dithering-like cycles EAST |
| DOI | 10.1088/1741-4326/ab945b |
| 通讯作者 | Zhuang, G.(gezhuang@ustc.edu.cn) |
| 英文摘要 | By injecting cryogenic deuterium pellets into H-mode plasmas with edge localized modes (ELMs) from the low-field side (LFS) on EAST tokamak, the impact of these pellets on the edge plasma can be investigated. In some cases of pellet injection (PI), the intermediate phase (I-phase), i.e, the dithering-like cycles, have been observed. Experiments show that during one dithering-like cycle, three phases can be distinguished, which are closely related to the variations in the pedestal density profiles and density gradient after PI. Phase 1 is characterized by rapid particle loss and a density pedestal crash, phase 2 has a relatively low density gradient and enhanced edge density fluctuation and phase 3 corresponds to the relatively fast recovery of the density pedestal and reduced edge density fluctuation. Through an experimental analysis, it is shown that the plasma will enter the I-phase when the edge line-averaged density increases beyond a certain threshold value after PI. H-I-H transitions are more likely to be observed when the edge line-averaged density is greater than the core line-averaged density. |
| WOS关键词 | DENSITY PROFILE ; DYNAMIC-BEHAVIOR ; PHYSICS ; REFLECTOMETRY ; DISCHARGES ; CONFINEMENT ; TRANSITION ; PROGRESS |
| 资助项目 | National Key R&D Program of China[2017YFE0300501] ; National Key R&D Program of China[2017YFE0301205] ; National Key R&D Program of China[2017YFA0402500] ; National Natural Science Foundations of China[11675211] ; National Natural Science Foundations of China[11625524] ; National Natural Science Foundations of China[11975271] ; National Natural Science Foundations of China[11605244] ; National Natural Science Foundations of China[11805136] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000560416000001 |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundations of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/70752]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhuang, G. |
| 作者单位 | 1.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 4.Shenzhen Univ, Coll Optoelect Engn, Minist Educ & Guangdong Prov, Key Lab Optoelect Devices & Syst, Shenzhen 518060, Peoples R China 5.Nanchang Univ, Nanchang 330027, Jiangxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, J.,Wang, Y. M.,Hou, J. L.,et al. Investigation of the dithering-like cycles induced by deuterium pellet injection during ELMy H-mode plasmas on EAST[J]. NUCLEAR FUSION,2020,60. |
| APA | Huang, J..,Wang, Y. M..,Hou, J. L..,Zhang, T..,Wen, F..,...&Zhuang, G..(2020).Investigation of the dithering-like cycles induced by deuterium pellet injection during ELMy H-mode plasmas on EAST.NUCLEAR FUSION,60. |
| MLA | Huang, J.,et al."Investigation of the dithering-like cycles induced by deuterium pellet injection during ELMy H-mode plasmas on EAST".NUCLEAR FUSION 60(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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