Particle-in-cell simulations on parametric instability of the lower hybrid wave
文献类型：期刊论文
| 作者 | Zhou, Taotao2,3; Xiang, Nong2,4 ; Gan, Chunyun2,4; Wang, Xueyi1,4; Jia, Guozhang2,4; Chen, Jiale2,4; Zhai, Xuemei2,4; Huang, Yueheng2,4
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| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 29 |
| ISSN号 | 1070-664X |
| DOI | 10.1063/5.0104505 |
| 通讯作者 | Xiang, Nong(xiangn@ipp.ac.cn) ; Gan, Chunyun(cygan@ipp.ac.cn) |
| 英文摘要 | Lower hybrid (LH) wave is an effective tool for current drive (CD) on tokamak devices. Parametric instability (PI) has always been a troubling phenomenon decreasing the lower hybrid current drive efficiency. In this work, the PI behavior of the LH waves for plasma parameters on the Experimental Advanced Superconducting Tokamak is investigated via first-principle simulation with a two-dimensional full-particle-in-cell method. The PI processes where an LH pump wave decays into another LH sideband and a low-frequency mode [ion sound quasi-mode (ISQM) or ion cyclotron quasi-mode (ICQM)] are observed in simulations. The ICQM-type and ISQM-type decay channels dominate, respectively, in the high- and low-plasma regimes while appearing simultaneously in the intermediate regime, which agrees well with the theoretical prediction by solving the parametric dispersion relation. In addition, for both the decay channels, their LH sidebands are excited with a wide range of parallel refractive index N & PAR; up to 30.0, which can resonantly interact with thermal electrons. The resulting electron heating can be enhanced due to overlap of resonances between the electrons and sidebands. Such electron heating not only dissipates the wave energy in the edge plasma but produces a significant portion of fast electrons, which may seriously affect tokamak discharges. The ion cyclotron heating due to the ICQMs is also observed in simulations. Published under an exclusive license by AIP Publishing. |
| WOS关键词 | CURRENT DRIVE ; ION-SOUND ; HOT-SPOTS ; PLASMA ; ABSORPTION ; EXCITATION ; ELECTRON ; MODEL |
| 资助项目 | National Key Research and Development Program of China[2017YFE0300406] ; National Key Research and Development Program of China[2019YFE00308050] ; National Natural Science Foundation of China[11975272] ; National Natural Science Foundation of China[12175274] ; National Natural Science Foundation of China[12005258] ; National Natural Science Foundation of China[11705236] ; Auburn University |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | AIP Publishing |
| WOS记录号 | WOS:000875734300001 |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Auburn University |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/129937]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Xiang, Nong; Gan, Chunyun |
| 作者单位 | 1.Auburn Univ, Dept Phys, Auburn, AL 36849 USA 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China 4.Chinese Acad Sci, Ctr Magnet Fus Theory, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Taotao,Xiang, Nong,Gan, Chunyun,et al. Particle-in-cell simulations on parametric instability of the lower hybrid wave[J]. PHYSICS OF PLASMAS,2022,29. |
| APA | Zhou, Taotao.,Xiang, Nong.,Gan, Chunyun.,Wang, Xueyi.,Jia, Guozhang.,...&Huang, Yueheng.(2022).Particle-in-cell simulations on parametric instability of the lower hybrid wave.PHYSICS OF PLASMAS,29. |
| MLA | Zhou, Taotao,et al."Particle-in-cell simulations on parametric instability of the lower hybrid wave".PHYSICS OF PLASMAS 29(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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