Plasma-wall interaction in an electrostatic sheath of plasma containing a monoenergetic electron beam
文献类型：期刊论文
| 作者 | Ou, Jing1 ; Zhao, Xiaoyun; Gan, Chunyun
|
| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2016-04-01 |
| 卷号 | 23期号:4页码:043510 |
| DOI | 10.1063/1.4946881 |
| 文献子类 | Article |
| 英文摘要 | The plasma-wall interaction in the presence of a monoenergetic electron beam has been studied by taking into account the self-consistency among plasma transport in a collisionless electrostatic sheath, deposited energy flux at the wall and material thermal response for carbon and tungsten as wall materials. The variations of the potential drop across the sheath, ion velocity at the sheath edge, and surface temperature of material as a function of electron beam flux are explored in the presence of the electron emission. It is found that when electron beam does not dominate the sheath, potential drop across the sheath depends strongly on the material properties due to the impact of electron emission while the surface temperature of material shows monotonic variation. In the case of carbon wall, the electron beam may dominate the sheath at a certain electron beam concentration or energy. Under this circumstance, both the potential drop across the sheath and surface temperature of material demonstrate the sharp increasing transition. The development of local hot spot on the plasma facing material is caused by the enhanced ion energy flux instead of the electron beam energy flux. If the electron emission is not taken into account, as a smaller electron beam flux, both the potential drop across the sheath and surface temperature of material display the significant change and then it may be easier to develop for the local hot spot on the plasma facing material. Published by AIP Publishing. |
| WOS关键词 | HOT-SPOT FORMATION ; ENERGETIC ELECTRONS ; FLUID MODEL ; BOUNDARY ; DISCHARGES ; EMISSION ; DIVERTOR ; TOKAMAK ; SURFACE ; CARBON |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000375855500079 |
| 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) ; 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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) ; 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| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/21880]  |
| 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,Zhao, Xiaoyun,Gan, Chunyun. Plasma-wall interaction in an electrostatic sheath of plasma containing a monoenergetic electron beam[J]. PHYSICS OF PLASMAS,2016,23(4):043510. |
| APA | Ou, Jing,Zhao, Xiaoyun,&Gan, Chunyun.(2016).Plasma-wall interaction in an electrostatic sheath of plasma containing a monoenergetic electron beam.PHYSICS OF PLASMAS,23(4),043510. |
| MLA | Ou, Jing,et al."Plasma-wall interaction in an electrostatic sheath of plasma containing a monoenergetic electron beam".PHYSICS OF PLASMAS 23.4(2016):043510. |
入库方式： OAI收割
来源：合肥物质科学研究院
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