Institutional Repository of Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, Anhui, Peoples R China
| Experimental identification of nonlinear coupling between (intermediate, small)-scale microturbulence and an MHD mode in the core of a superconducting tokamak | |
Sun, P. J.1; Li, Y. D.1; Ren, Y.2; Zhang, X. D.1; Wu, G. J.1; Xu, L. Q.1; Chen, R.1 ; Li, Q.3; Zhao, H. L.1; Zhang, J. Z.1; Shi, T. H.1; Wang, Y. M.1; Lyu, B.1; Hu, L. Q.1; Li, J.1
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| 2018 | |
| 发表期刊 | NUCLEAR FUSION
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| ISSN | 0029-5515 |
| 摘要 | In this paper, we present clear experimental evidence of core region nonlinear coupling between (intermediate, small)-scale microturbulence and an magnetohydrodynamics (MHD) mode during the current ramp-down phase in a set of L-mode plasma discharges in the experimental advanced superconducting tokamak (EAST, Wan et al (2006 Plasma Sci. Technol. 8 253)). Density fluctuations of broadband microturbulence (k perpendicular to rho(i) similar to 2-5.2)and the MHD mode (toroidal mode number m = -1, poloidal mode number n = 1) are measured simultaneously, using a four-channel tangential CO2 laser collective scattering diagnostic in core plasmas. The nonlinear coupling between the broadband microturbulence and the MHD mode is directly demonstrated by showing a statistically significant bicoherence and modulation of turbulent density fluctuation amplitude by the MHD mode. |
| 关键词 | nonlinear coupling multi-scale density fluctuation microturbulence |
| DOI | 10.1088/1741-4326/aa8a91 |
| 关键词[WOS] | SCALE TURBULENCE ; TEARING MODES ; ZONAL FLOWS ; PLASMA ; TRANSPORT ; SCATTERING ; WAVES |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Science Foundation of ASIPP[Y45ETY2307] ; National Key Development Project[2016YFA0400600] ; National Natural Science Foundation of China[11422546] ; National Natural Science Foundation of China[11575238] ; National Natural Science Foundation of China[11275232] ; National Natural Science Foundation of China[10975159] ; National Natural Science Foundation of China[11505228] ; National Natural Science Foundation of China[11575235] ; National Magnetic Confinement Fusion Science Program of China[2015GB101000] ; National Magnetic Confinement Fusion Science Program of China[2015GB101000] ; National Natural Science Foundation of China[11575235] ; National Natural Science Foundation of China[11505228] ; National Natural Science Foundation of China[10975159] ; National Natural Science Foundation of China[11275232] ; National Natural Science Foundation of China[11575238] ; National Natural Science Foundation of China[11422546] ; National Key Development Project[2016YFA0400600] ; Science Foundation of ASIPP[Y45ETY2307] |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Fluids & Plasmas |
| WOS记录号 | WOS:000414270300003 |
| 出版者 | IOP PUBLISHING LTD |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/34839 |
| 专题 | 中科院等离子体物理研究所 |
| 通讯作者 | Sun, P. J. |
| 作者单位 | 1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 2.Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA 3.Guangdong Univ Technol, Guangzhou 510006, Guangdong, Peoples R China |
| 第一作者单位 | 中科院等离子体物理研究所 |
| 通讯作者单位 | 中科院等离子体物理研究所 |
| 推荐引用方式 GB/T 7714 | Sun, P. J.,Li, Y. D.,Ren, Y.,et al. Experimental identification of nonlinear coupling between (intermediate, small)-scale microturbulence and an MHD mode in the core of a superconducting tokamak[J]. NUCLEAR FUSION,2018,58(1):8. |
| APA | Sun, P. J..,Li, Y. D..,Ren, Y..,Zhang, X. D..,Wu, G. J..,...&Li, J..(2018).Experimental identification of nonlinear coupling between (intermediate, small)-scale microturbulence and an MHD mode in the core of a superconducting tokamak.NUCLEAR FUSION,58(1),8. |
| MLA | Sun, P. J.,et al."Experimental identification of nonlinear coupling between (intermediate, small)-scale microturbulence and an MHD mode in the core of a superconducting tokamak".NUCLEAR FUSION 58.1(2018):8. |
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| Experimental identif（4238KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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