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A preliminary study of direct Be-10(2+) counting in AMS using the super-halogen anion BeF3-
Fu Yun-Chong1,2; Zhang Li1,2; Zhou Wei-Jian1,2,3; Zhao Xiao-Lei1,2,4; Wu Zhen-Kun1,2; Zhao Guo-Qing1,2; Liu Qi1,2; Lu Xue-Feng1,2,3; Zhao Wen-Nian2,3; Huang Chun-Hai2,3
2015-10-15
Source PublicationNUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
ISSN0168-583X
Volume361Issue:2015Pages:207-210
SubtypeArticle
Abstract

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.

KeywordSuper-halogen Anion Bef3- Be-10 Ams
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.nimb.2015.03.084
WOS KeywordElectron-affinities ; Superhalogens ; Sediment ; Ice
Indexed BySCI
Language英语
WOS Research AreaInstruments & Instrumentation ; Nuclear Science & Technology ; Physics
WOS SubjectInstruments & Instrumentation ; Nuclear Science & Technology ; Physics, Atomic, Molecular & Chemical ; Physics, Nuclear
WOS IDWOS:000363345900040
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9226
Collection加速器质谱中心
Corresponding AuthorFu Yun-Chong
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China
2.Xian AMS Ctr, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian 710061, Peoples R China
3.Xi An Jiao Tong Univ, Xian 710049, Peoples R China
4.Univ Ottawa, AE Lalonde AMS Lab, Ottawa, ON K1N 6N5, Canada
Recommended Citation
GB/T 7714
Fu Yun-Chong,Zhang Li,Zhou Wei-Jian,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(2015):207-210.
APA Fu Yun-Chong.,Zhang Li.,Zhou Wei-Jian.,Zhao Xiao-Lei.,Wu Zhen-Kun.,...&Huang Chun-Hai.(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(2015),207-210.
MLA Fu Yun-Chong,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(2015):207-210.
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