Experimental identification of edge temperature ring oscillation and alternating turbulence transitions near the pedestal top for sustaining stationary I-mode
文献类型：期刊论文
| 作者 | Liu, A. D.1; Zou, X. L.2; Han, M. K.3; Wang, T. B.4,5; Zhou, C.1 ; Wang, M. Y.1,6; Duan, Y. M.7; Verdoolaege, G.5; Dong, J. Q.4; Wang, Z. X.3
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| 刊名 | NUCLEAR FUSION
 |
| 出版日期 | 2020-12-01 |
| 卷号 | 60 |
| ISSN号 | 0029-5515 |
| 关键词 | I-mode turbulence transition pedestal top azimuthally symmetric structure |
| DOI | 10.1088/1741-4326/abb14a |
| 通讯作者 | Wang, M. Y.(wmyuan@mail.ustc.edu.cn) |
| 英文摘要 | A reproducible stationary improved confinement mode (I-mode) has been achieved recently in the Experimental Advanced Superconducting Tokamak (EAST), featuring good confinement without particle transport barrier. The microscopic mechanism of sustaining stationary I-mode, based on the coupling between turbulence transitions and the edge temperature oscillation, has been discovered for the first time. A radially localized edge temperature ring oscillation (ETRO) with azimuthally symmetric structure (n = 0,m = 0) has been identified and it is accompanied by alternating turbulence transitions between an electron diamagnetic drift turbulence (ET) and an ion diamagnetic drift turbulence (IT). The transition is controlled by local electron temperature gradient and strong non-linear couplings between weak coherent mode (WCM) and ET could be identified near the pedestal top, suggesting the unique status of the pedestal top region in sustaining the stationary I-mode confinement on EAST. |
| WOS关键词 | CONFINEMENT ; REGIME ; POWER |
| 资助项目 | National MCF Energy RD Program[2017YFE0301204] ; National MCF Energy RD Program[2018YFE0311200] ; Natural Science Foundation of China[U1967206] ; Natural Science Foundation of China[11975231] ; Natural Science Foundation of China[11922513] ; EAST team |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000576902100001 |
| 资助机构 | National MCF Energy RD Program ; Natural Science Foundation of China ; EAST team |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/104434]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Wang, M. Y. |
| 作者单位 | 1.Univ Sci & Technol China, Sch Nucl Sci & Technol, Hefei 230026, Anhui, Peoples R China 2.CEA, IRFM, F-13108 St Paul Les Durance, France 3.Dalian Univ Technol, Key Lab Mat Modificat Beams, Sch Phys, Dalian 116024, Peoples R China 4.Southwestern Inst Phys, Chengdu 610041, Peoples R China 5.Univ Ghent, Dept Appl Phys, B-9000 Ghent, Belgium 6.Hebei Key Lab Compact Fus, Langfang 065001, Peoples R China 7.Chinese Acad Sci, Inst Plasma Phys, Hefei 230021, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, A. D.,Zou, X. L.,Han, M. K.,et al. Experimental identification of edge temperature ring oscillation and alternating turbulence transitions near the pedestal top for sustaining stationary I-mode[J]. NUCLEAR FUSION,2020,60. |
| APA | Liu, A. D..,Zou, X. L..,Han, M. K..,Wang, T. B..,Zhou, C..,...&Liu, W. D..(2020).Experimental identification of edge temperature ring oscillation and alternating turbulence transitions near the pedestal top for sustaining stationary I-mode.NUCLEAR FUSION,60. |
| MLA | Liu, A. D.,et al."Experimental identification of edge temperature ring oscillation and alternating turbulence transitions near the pedestal top for sustaining stationary I-mode".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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