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  4. 中科院等离子体物理研究所
Studies of various physics effects on an on-axis LHCD experiment using numerical tools

文献类型：期刊论文

作者Yang, C.2; Bonoli, P. T.1; Shiraiwa, S.1; Ding, B.2; Li, M. H.2; Frank, Samuel1; Zhai, Xuemei2
刊名PHYSICS OF PLASMAS
出版日期2018-08-01
卷号25期号:8页码:9
ISSN号1070-664X
DOI10.1063/1.5041018
通讯作者Yang, C.()
英文摘要The lower hybrid current drive (LHCD) plays an important role in the long pulse and high performance experiments on the EAST Tokamak, using LHW systems with frequencies of 2.45 GHz and 4.6 GHz. With the initial parallel refractive index mostly peaking at n(parallel to) similar to 1.8-2.1, it is difficult to have on-axis LHCD due to the accessibility conditions which prevents the LHW from propagating into the plasma core. However, according to the investigation of HXR diagnostics, LHW did provide an on-axis current drive in an EAST experiment. To interpret this on-axis LHCD phenomenon, various physics effects that give rise to variations in parallel wave numbers, thus influencing the propagation and the absorption of the LHW, have been taken into account, such as toroidal effects, full wave effects with focusing and diffraction, and scattering effects due to density fluctuations. Numerical tools including ray-tracing and full wave codes that contain one or two of the above physics effects have been used to model the heating and current drive of the LHW on EAST. Linear Landau damping and quasi-linear Landau damping have been compared by using the coupling between ray-tracing and the Fokker-Planck codes. Convergence studies have been performed for the full wave modeling, the maximum poloidal modes in the full wave have been scanned, and the results are compared with each other. The factors that characterize the amplitude, the radial thickness, and the location of the density fluctuations have been studied and scanned. The measurement of HXR diagnostics has been compared with synthetic diagnostics by reconstructing the HXR data from both the standard GENRAY/CQL3D LHCD modelling and the modeling taking the scattering effects into account. Published by AIP Publishing.
WOS关键词HYBRID CURRENT DRIVE ; WAVE-PROPAGATION ; MAGNETIC RIPPLE ; DENSITY-FLUCTUATIONS ; SPECTRAL GAP ; SCATTERING ; TOKAMAKS
资助项目National Key R&D Program of China[2017YFE0300400] ; National Natural Science Foundation of China[11575239] ; U.S. Department of Energy[DE-SC0010492] ; National Magnetic Confinement Fusion Science Program of China[2015GB101003]
WOS研究方向Physics
语种英语
WOS记录号WOS:000443730900057
出版者AMER INST PHYSICS
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; U.S. Department of Energy ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/38782]  
专题合肥物质科学研究院_中科院等离子体物理研究所
通讯作者Yang, C.
作者单位1.MIT, Plasma Sci & Fus Ctr, 77 Massachusetts Ave, Cambridge, MA 02139 USA
2.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Yang, C.,Bonoli, P. T.,Shiraiwa, S.,et al. Studies of various physics effects on an on-axis LHCD experiment using numerical tools[J]. PHYSICS OF PLASMAS,2018,25(8):9.
APA Yang, C..,Bonoli, P. T..,Shiraiwa, S..,Ding, B..,Li, M. H..,...&Zhai, Xuemei.(2018).Studies of various physics effects on an on-axis LHCD experiment using numerical tools.PHYSICS OF PLASMAS,25(8),9.
MLA Yang, C.,et al."Studies of various physics effects on an on-axis LHCD experiment using numerical tools".PHYSICS OF PLASMAS 25.8(2018):9.

入库方式： OAI收割

来源：合肥物质科学研究院

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