I-mode plasma confinement improvement by real-time lithium injection and its classification on EAST tokamak
文献类型：期刊论文
| 作者 | Zhong, X. M.3,4; Zou, X. L.1; Liu, A. D.5; Song, Y. T.2; Zhuang, G.5; Liu, H. Q.2; Xu, L. Q.2; Li, E. Z.2; Zhang, B.2 ; Zuo, G. Z.2
|
| 刊名 | NUCLEAR FUSION
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 64 |
| 关键词 | confinement improvement I-mode classification lithium injection turbulence |
| ISSN号 | 0029-5515 |
| DOI | 10.1088/1741-4326/ad80a8 |
| 通讯作者 | Liu, A. D.(lad@ustc.edu.cn) ; Song, Y. T.(songyt@ipp.ac.cn) |
| 英文摘要 | I-mode is a promising regime for future fusion reactors due to the high energy confinement and the moderate particle confinement. However, the effect of lithium, which has been widely applied for particle recycling and impurity control, on I-mode plasma is still unclear. Recently, experiments of real-time lithium powder injection on I-mode plasma have been carried out in EAST Tokamak. It was found that the confinement performance of the I-mode can be improved by the lithium powder injection, which can strongly reduce electron turbulence (ET) and then trigger ion turbulence (IT). And it was observed that the ET intensity is inversely proportional to the velocity shear, which suggests that the injection of lithium powder leads to a gradual enhancement of the shear flow, whereby the turbulence is reduced and consequently the confinement is improved. Four different regimes of I-mode have been identified in EAST. The Type I I-mode plasma is characterized by the weakly coherent mode (WCM) and the geodesic-acoustic mode (GAM). The Type II I-mode is featured as the WCM and the edge temperature ring oscillation (ETRO). The Type III I-mode corresponds to the plasma with the co-existence of ETRO, GAM, and WCM. The Type IV I-mode denotes the plasma with only WCM but without ETRO and GAM. It was observed that the WCM intensity is increased with lithium powder injection by the confinement improvement/pedestal temperature increase. EAST experiments demonstrate that lithium powder injection is an effective tool for real-time control and confinement improvement of I-mode plasma. |
| WOS关键词 | DOPPLER ; REFLECTOMETRY ; SCATTERING ; OPERATION ; VELOCITY ; SYSTEM |
| 资助项目 | National Key R&D Program of China[2022YFE03070000] ; National Key R&D Program of China[2022YFE03070004] ; Natural Science Foundation of China[12075155] ; Natural Science Foundation of China[U1967206] ; Natural Science Foundation of China[11975231] ; Natural Science Foundation of China[11922513] ; National MCF Energy RD Program[2017YFE0301204] ; National MCF Energy RD Program[2018YFE0311200] ; Users with Excellence Program of Hefei Science Center CAS[2020HSC-UE009] ; Fundamental Research Funds for the Central Universities |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001332568300001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Key R&D Program of China ; Natural Science Foundation of China ; National MCF Energy RD Program ; Users with Excellence Program of Hefei Science Center CAS ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/134645]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Liu, A. D.; Song, Y. T. |
| 作者单位 | 1.IRFM, CEA, F-13108 St Paul Les Durance, France 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230021, Anhui, Peoples R China 3.Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China 4.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 5.Univ Sci & Technol China, Sch Nucl Sci & Technol, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhong, X. M.,Zou, X. L.,Liu, A. D.,et al. I-mode plasma confinement improvement by real-time lithium injection and its classification on EAST tokamak[J]. NUCLEAR FUSION,2024,64. |
| APA | Zhong, X. M..,Zou, X. L..,Liu, A. D..,Song, Y. T..,Zhuang, G..,...&Li, J. G..(2024).I-mode plasma confinement improvement by real-time lithium injection and its classification on EAST tokamak.NUCLEAR FUSION,64. |
| MLA | Zhong, X. M.,et al."I-mode plasma confinement improvement by real-time lithium injection and its classification on EAST tokamak".NUCLEAR FUSION 64(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。