Understanding the destabilization of a resistive drift mode in EAST core plasmas
文献类型：期刊论文
| 作者 | Li, Erzhong1 ; Xu, L.1; Guo, W.1; Chen, K.1; Lyu, B.1; Shen, Y.1,2; Hu, L.1; EAST Contributors
|
| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2017-02-01 |
| 卷号 | 24期号:2页码:1-8 |
| DOI | 10.1063/1.4976136 |
| 文献子类 | Article |
| 英文摘要 | A low-frequency oscillation driven by heavy impurities is frequently observed in the Experimental Advanced Superconducting Tokamak (EAST) H-mode discharges accompanied by an Edge Localized Mode-free duration. This instability has been identified as a resistive drift mode according to a two-fluid simulation, showing that the mode stability is determined by the gradient of resistivity profile. Furthermore, the analytic theory also demonstrates that the mode is destabilized by the sharp impurity density gradient agreeing to the observation of intrinsic Mo (Molybdenum) concentration. The destabilization conditions have been derived like L-N,L- z < 2/3 L-T,L-z (L-N,L-z and L-T,L-z are the scale lengths of density and temperature of impurity, respectively). Calculations based on the analytical theory reproduce the characteristic of the mode, which is in agreement with the experimental observations. |
| WOS关键词 | ELONGATED TCV PLASMAS ; DENSITY PERTURBATIONS ; PELLET INJECTION ; TEARING MODES ; TOKAMAK ; INSTABILITY ; EVOLUTION ; IONS |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000396012900048 |
| 资助机构 | National Natural Science Foundation of China(11405216 ; National Natural Science Foundation of China(11405216 ; National Natural Science Foundation of China(11405216 ; National Natural Science Foundation of China(11405216 ; National Natural Science Foundation of China(11405216 ; National Natural Science Foundation of China(11405216 ; National Natural Science Foundation of China(11405216 ; National Natural Science Foundation of China(11405216 ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; 11505226 ; 11505226 ; 11505226 ; 11505226 ; 11505226 ; 11505226 ; 11505226 ; 11505226 ; 11475219) ; 11475219) ; 11475219) ; 11475219) ; 11475219) ; 11475219) ; 11475219) ; 11475219) ; National Natural Science Foundation of China(11405216 ; National Natural Science Foundation of China(11405216 ; National Natural Science Foundation of China(11405216 ; National Natural Science Foundation of China(11405216 ; National Natural Science Foundation of China(11405216 ; National Natural Science Foundation of China(11405216 ; National Natural Science Foundation of China(11405216 ; National Natural Science Foundation of China(11405216 ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics(NSFC)(11261140328) ; 11505226 ; 11505226 ; 11505226 ; 11505226 ; 11505226 ; 11505226 ; 11505226 ; 11505226 ; 11475219) ; 11475219) ; 11475219) ; 11475219) ; 11475219) ; 11475219) ; 11475219) ; 11475219) |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/31751]  |
| 专题 | 合肥物质科学研究院_中科院等离子体物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Anqing Normal Univ, Sch Phys & Elect Engn, Anqing 246011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Erzhong,Xu, L.,Guo, W.,et al. Understanding the destabilization of a resistive drift mode in EAST core plasmas[J]. PHYSICS OF PLASMAS,2017,24(2):1-8. |
| APA | Li, Erzhong.,Xu, L..,Guo, W..,Chen, K..,Lyu, B..,...&EAST Contributors.(2017).Understanding the destabilization of a resistive drift mode in EAST core plasmas.PHYSICS OF PLASMAS,24(2),1-8. |
| MLA | Li, Erzhong,et al."Understanding the destabilization of a resistive drift mode in EAST core plasmas".PHYSICS OF PLASMAS 24.2(2017):1-8. |
入库方式： OAI收割
来源：合肥物质科学研究院
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