Particle-in-cell simulations on parametric instability of the lower hybrid wave

doi:10.1063/5.0104505

HFCAS OpenIR

	Particle-in-cell simulations on parametric instability of the lower hybrid wave
	Zhou, Taotao 1,2; Xiang, Nong1,3 ; Gan, Chunyun1,3 ; Wang, Xueyi 3,4; Jia, Guozhang1,3 ; Chen, Jiale1,3 ; Zhai, Xuemei1,3 ; Huang, Yueheng 1,3
	2022-10-01
发表期刊	PHYSICS OF PLASMAS
ISSN	1070-664X
通讯作者	Xiang, Nong(xiangn@ipp.ac.cn) ; Gan, Chunyun(cygan@ipp.ac.cn)
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.
DOI	10.1063/5.0104505
关键词[WOS]	CURRENT DRIVE ; ION-SOUND ; HOT-SPOTS ; PLASMA ; ABSORPTION ; EXCITATION ; ELECTRON ; MODEL
收录类别	SCI
语种	英语
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
项目资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Auburn University
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
WOS记录号	WOS:000875734300001
出版者	AIP Publishing
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/129938
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.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Ctr Magnet Fus Theory, Hefei 230031, Peoples R China 4.Auburn Univ, Dept Phys, Auburn, AL 36849 USA
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	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).