Heat flow through a plasma sheath in the presence of secondary electron emission from plasma-wall interaction

doi:10.1002/ctpp.201600043

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院等离子体物理研究所

	Heat flow through a plasma sheath in the presence of secondary electron emission from plasma-wall interaction
	Ou, Jing 1,2; Zhao, Xiaoyun 1
刊名	CONTRIBUTIONS TO PLASMA PHYSICS
	2017-02-01
卷号	57 期号:2 页码:50-57
关键词	Energy Transmission Coefficient Plasma Sheath Secondary Emission Electron Sputtering Yield
DOI	10.1002/ctpp.201600043
文献子类	Article
英文摘要	The formation of a plasma sheath in front of a negative wall emitting secondary electron is studied by a one-dimensional fluid model. The model takes into account the effect of the ion temperature. With the secondary electron emission (SEE) coefficient obtained by integrating over the Maxwellian electron velocity distribution for various materials such as Be, C, Mo, and W, it is found that the wall potential depends strongly on the ion temperature and the wall material. Before the occurrence of the space-charge-limited (SCL) emission, the wall potential decreases with increasing ion temperature. The variation of the sheath potential caused by SEE affects the sheath energy transmission and impurity sputtering yield. If SEE is below SCL emission, the energy transmission coefficient always varies with the wall materials as a result of the effect of SEE, and it increases as the ion temperature is increased. By comparison of with and without SEE, it is found that sputtering yields have pronounced differences for low ion temperatures but are almost the same for high ion temperatures.
WOS关键词	CHARGE-LIMITED CONDITION ; OBLIQUE MAGNETIC-FIELD ; TRANSITION
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000398735300002
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 Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; National Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; National Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; National Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; National Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; National Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; National Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; National Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; Programme of Fusion Reactor Physics and Digital Tokamak ; Programme of Fusion Reactor Physics and Digital Tokamak ; Programme of Fusion Reactor Physics and Digital Tokamak ; Programme of Fusion Reactor Physics and Digital Tokamak ; Programme of Fusion Reactor Physics and Digital Tokamak ; Programme of Fusion Reactor Physics and Digital Tokamak ; Programme of Fusion Reactor Physics and Digital Tokamak ; Programme of Fusion Reactor Physics and Digital Tokamak ; CAS "One-Three-Five" Strategic Planning ; CAS "One-Three-Five" Strategic Planning ; CAS "One-Three-Five" Strategic Planning ; CAS "One-Three-Five" Strategic Planning ; CAS "One-Three-Five" Strategic Planning ; CAS "One-Three-Five" Strategic Planning ; CAS "One-Three-Five" Strategic Planning ; CAS "One-Three-Five" Strategic Planning ; 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 Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; National Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; National Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; National Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; National Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; National Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; National Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; National Magnetic Confinement Fusion Science Programme of China(2015GB101003) ; Programme of Fusion Reactor Physics and Digital Tokamak ; Programme of Fusion Reactor Physics and Digital Tokamak ; Programme of Fusion Reactor Physics and Digital Tokamak ; Programme of Fusion Reactor Physics and Digital Tokamak ; Programme of Fusion Reactor Physics and Digital Tokamak ; Programme of Fusion Reactor Physics and Digital Tokamak ; Programme of Fusion Reactor Physics and Digital Tokamak ; Programme of Fusion Reactor Physics and Digital Tokamak ; CAS "One-Three-Five" Strategic Planning ; CAS "One-Three-Five" Strategic Planning ; CAS "One-Three-Five" Strategic Planning ; CAS "One-Three-Five" Strategic Planning ; CAS "One-Three-Five" Strategic Planning ; CAS "One-Three-Five" Strategic Planning ; CAS "One-Three-Five" Strategic Planning ; CAS "One-Three-Five" Strategic Planning ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/31813]
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, Peoples R China
推荐引用方式 GB/T 7714	Ou, Jing,Zhao, Xiaoyun. Heat flow through a plasma sheath in the presence of secondary electron emission from plasma-wall interaction[J]. CONTRIBUTIONS TO PLASMA PHYSICS,2017,57(2):50-57.
APA	Ou, Jing,&Zhao, Xiaoyun.(2017).Heat flow through a plasma sheath in the presence of secondary electron emission from plasma-wall interaction.CONTRIBUTIONS TO PLASMA PHYSICS,57(2),50-57.
MLA	Ou, Jing,et al."Heat flow through a plasma sheath in the presence of secondary electron emission from plasma-wall interaction".CONTRIBUTIONS TO PLASMA PHYSICS 57.2(2017):50-57.