The fragmentation of SF6 under O- and Al- negative ion impact

doi:10.1139/cjp-2016-0327

	The fragmentation of SF6 under O- and Al- negative ion impact
	He, Xiaodong 1,2; Zhao, Zilong 1,2; Li, Junqin 1,2; Wang, Dedong 1,2; Zhang, Xuemei 1,2
刊名	CANADIAN JOURNAL OF PHYSICS
	2016-11-01
卷号	94 页码:1228-1232
关键词	TOF coincidence yield ratios SF6 fragment
ISSN号	0008-4204
DOI	10.1139/cjp-2016-0327
英文摘要	The fragmentation of SF6 under 15-30 keV O- and 20-30 keV Al- impact has been studied using a crossed beam technique. The recoil ions and ion pairs are identified in coincidence with scattered projectiles with different charge states by the usage of time-of-flight (TOF) mass spectroscopy. The yield ratios of fragment ions to SF5+ and the yield ratios of ion pairs to (S+, F+) in collision with O- and Al- are obtained and compared with those of H- and C-. It is found that the ratios have a very strong dependence on the momenta of the projectiles. Besides, by analyzing the TOF spectra, it is also found that more SFn+ with n odd are produced than those with n even under O- , Al- impact, which also happened in collision with H- and C-, positive ion and electron impact. The dissociation channels of SFn2+ are found to be insensitive to incident ions' energy and kind in our energy range.
资助项目	Chinese National Science Foundation[11374062] ; Shanghai Leading Academic Discipline Project[B107]
WOS关键词	IONIZATION CROSS-SECTIONS ; MULTIELECTRON-DISSOCIATIVE-IONIZATION ; ELECTRON-IMPACT ; THEORETICAL DETERMINATION ; MOLECULES ; THRESHOLD
WOS研究方向	Physics
语种	英语
出版者	CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
WOS记录号	WOS:000387576800018
资助机构	Chinese National Science Foundation ; Shanghai Leading Academic Discipline Project
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/43671]
专题	中国科学院近代物理研究所
通讯作者	Zhang, Xuemei
作者单位	1.Fudan Univ, Inst Modern Phys, Shanghai 200433, Peoples R China 2.Fudan Univ, Minist Educ, Key Lab, Appl Ion Beam Phys Lab, Shanghai 200433, Peoples R China
推荐引用方式 GB/T 7714	He, Xiaodong,Zhao, Zilong,Li, Junqin,et al. The fragmentation of SF6 under O- and Al- negative ion impact[J]. CANADIAN JOURNAL OF PHYSICS,2016,94:1228-1232.
APA	He, Xiaodong,Zhao, Zilong,Li, Junqin,Wang, Dedong,&Zhang, Xuemei.(2016).The fragmentation of SF6 under O- and Al- negative ion impact.CANADIAN JOURNAL OF PHYSICS,94,1228-1232.
MLA	He, Xiaodong,et al."The fragmentation of SF6 under O- and Al- negative ion impact".CANADIAN JOURNAL OF PHYSICS 94(2016):1228-1232.