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Plasma sheath in the presences of non-Maxwellian energetic electrons and secondary emission electrons

文献类型：期刊论文

作者Ou, Jing1,2; Lin, Binbin1,2; Zhao, Xiaoyun1,2; Yang, Youlei1,2
刊名PLASMA PHYSICS AND CONTROLLED FUSION
出版日期2016-07-01
卷号58期号:7页码:075004
关键词Sheath Secondary Emission Electrons Non-maxwellian Energetic Electrons
DOI10.1088/0741-3335/58/7/075004
文献子类Article
英文摘要The formation of a sheath in front of a carbon or tungsten material plane immersed in a plasma containing non-Maxwellian energetic electrons and secondary emission electrons is studied using a 1D model. In the model, energetic electrons are described by the electron energy distribution function (EEDF) and secondary electron emission (SEE) is produced by the electrons impinging on the wall. It is found that SEE coefficient depends on not only the sheath potential but also the EEDF profile of energetic electrons when a non-Maxwellian energetic electron component is present. The energetic electrons and associated secondary emission electrons can strongly modify ion velocity at sheath edge, floating potential and I-V probe characteristic. Due to the interdependence between SEE coefficient originating from the impact of non-Maxwellian energetic electrons on the wall and the sheath potential, with the increase in the energy of energetic electrons, a sudden jump phenomenon can be found in the profiles of SEE coefficient and other quantities such as floating potential and ion velocity at the sheath edge for tungsten wall, while for carbon wall they are the continuous variation. To begin with, the energetic electron component does not dominate the sheath, and I-V probe characteristic depends on both the EEDF profile of energetic electrons and material properties. Once the energetic electron component dominates the sheath, the analysis of I-V probe characteristic will yield the energy of energetic electrons.
WOS关键词EMITTING ELECTRODE ; FLUID MODEL ; BOUNDARY ; VOLTAGE ; FRONT ; LAYER ; BEAM ; EDGE
WOS研究方向Physics
语种英语
WOS记录号WOS:000378616300014
资助机构National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; program of Fusion Reactor Physics and Digital Tokamak with the CAS 'One-Three-Five' Strategic Planning ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/21877]  
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.Chinese Acad Sci, Ctr Magnet Fus Theory, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Ou, Jing,Lin, Binbin,Zhao, Xiaoyun,et al. Plasma sheath in the presences of non-Maxwellian energetic electrons and secondary emission electrons[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2016,58(7):075004.
APA Ou, Jing,Lin, Binbin,Zhao, Xiaoyun,&Yang, Youlei.(2016).Plasma sheath in the presences of non-Maxwellian energetic electrons and secondary emission electrons.PLASMA PHYSICS AND CONTROLLED FUSION,58(7),075004.
MLA Ou, Jing,et al."Plasma sheath in the presences of non-Maxwellian energetic electrons and secondary emission electrons".PLASMA PHYSICS AND CONTROLLED FUSION 58.7(2016):075004.

入库方式： OAI收割

来源：合肥物质科学研究院

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