A preliminary study of direct Be-10(2+) counting in AMS using the super-halogen anion BeF3-

doi:10.1016/j.nimb.2015.03.084

	A preliminary study of direct Be-10(2+) counting in AMS using the super-halogen anion BeF3-
	Lu Xue-Feng 1,3,4; Zhao Guo-Qing 1,3; Wu Zhen-Kun 1,3; Zhao Xiao-Lei 1,2,3; Zhou Wei-Jian 1,3,4; Zhang Li 1,3; Fu Yun-Chong 1,3; Huang Chun-Hai 1,4; Zhao Wen-Nian 1,4; Liu Qi 1,3
刊名	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
	2015-10-15
卷号	361 页码:207-210
关键词	Super-halogen Anion Bef3- Be-10 Ams
DOI	10.1016/j.nimb.2015.03.084
文献子类	Article
英文摘要	The key to effective Be-10 measurements by AMS is to efficiently suppress the interference of the isobar B-10 and at the same time optimize Be-10 transmission. In this work, a new approach of measuring Be-10 by AMS has been studied. It uses the super-halogen anion of beryllium, BeF3-, which inherently suppresses B-10 interference by nearly 5 orders of magnitude because the accompanying BF3- anion is rarely formed. The resulting B-10 suppression factor is not as high as that achieved with energy degrader foils, but the B-10 and Be-10 separation in the final ionization detector was found to result in sufficient total B-10 suppression for Be-10(2+) to be counted directly at similar to 6 MeV energies. Although the stripping yield from (BeF3-)-Be-10 to Be-10(2+) is not as large as that from (BeF3-)-Be-10, this inefficiency is compensated by avoiding the reduction in transmission due to charge fraction splitting and optical transmission losses after the degrader foil. This paper summarizes our first observation of the direct Be-10(2+) counting approach using the 3 MV multi-element system at the Xi'an AMS. (C) 2015 Elsevier B.V. All rights reserved.
WOS关键词	ELECTRON-AFFINITIES ; SUPERHALOGENS ; SEDIMENT ; ICE
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种	英语
WOS记录号	WOS:000363345900040
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5062]
专题	地球环境研究所_加速器质谱中心
作者单位	1.Xian AMS Ctr, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian 710061, Peoples R China 2.Univ Ottawa, AE Lalonde AMS Lab, Ottawa, ON K1N 6N5, Canada 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China 4.Xi An Jiao Tong Univ, Xian 710049, Peoples R China
推荐引用方式 GB/T 7714	Lu Xue-Feng,Zhao Guo-Qing,Wu Zhen-Kun,et al. A preliminary study of direct Be-10(2+) counting in AMS using the super-halogen anion BeF3-[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2015,361:207-210.
APA	Lu Xue-Feng.,Zhao Guo-Qing.,Wu Zhen-Kun.,Zhao Xiao-Lei.,Zhou Wei-Jian.,...&Liu Qi.(2015).A preliminary study of direct Be-10(2+) counting in AMS using the super-halogen anion BeF3-.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,361,207-210.
MLA	Lu Xue-Feng,et al."A preliminary study of direct Be-10(2+) counting in AMS using the super-halogen anion BeF3-".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 361(2015):207-210.