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 | |
发表期刊 | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS |
卷号 | 361页码:207-210 |
文章类型 | Article |
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. |
关键词 | Super-halogen Anion Bef3- Be-10 Ams |
WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
DOI | 10.1016/j.nimb.2015.03.084 |
关键词[WOS] | ELECTRON-AFFINITIES ; SUPERHALOGENS ; SEDIMENT ; ICE |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics |
WOS类目 | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics, Atomic, Molecular & Chemical ; Physics, Nuclear |
WOS记录号 | WOS:000363345900040 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/5062 |
专题 | 加速器质谱中心 |
作者单位 | 1.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 |
推荐引用方式 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,2015,361:207-210. |
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,361,207-210. |
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):207-210. |
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