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

doi:10.1002/ctpp.201600043

	Heat flow through a plasma sheath in the presence of secondary electron emission from plasma-wall interaction
	Ou, Jing1,2 ; Zhao, Xiaoyun 1
	2017-02-01
发表期刊	CONTRIBUTIONS TO PLASMA PHYSICS
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.
文章类型	Article
关键词	Energy Transmission Coefficient Plasma Sheath Secondary Emission Electron Sputtering Yield
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1002/ctpp.201600043
关键词[WOS]	CHARGE-LIMITED CONDITION ; OBLIQUE MAGNETIC-FIELD ; TRANSITION
收录类别	SCI
语种	英语
项目资助者	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)
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
WOS记录号	WOS:000398735300002
引用统计	被引频次：9[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/334002/31813
专题	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
第一作者单位	中科院等离子体物理研究所
推荐引用方式 GB/T 7714	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.

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