A New capability for Ca-41 analysis using CaF3- at the Xi'an-AMS | |
Fu Yun-Chong1,2,3; Zhou Wei-Jian1,3,4; Cheng Peng1,3; Zhang Lu-Yuan1,3 | |
通讯作者 | Fu Yun-Chong(fuyc@ieecas.cn) |
2019 | |
发表期刊 | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS |
ISSN | 0168-583X |
卷号 | 438页码:162-165 |
摘要 | The analysis of Ca-41 can be quantified by measuring the ratio Ca-41/Ca-40. At present, ratios of Ca-41/Ca-40 <= 10(-11) can only be measured by accelerator mass spectrometry (AMS). The sensitivity is mainly limited by the interference of the isobar K-41. With compact AMS (<= 1 MV), abundance sensitivities of 10(-11) to 10(-12) have been demonstrated, but this may necessitate the measurement of K-39 to correct for the K-41 background. With a 3 MV AMS, the dE/dx method can still be used to partially separate "Ca from K-41. In this work, a new capability for Ca-41 analysis has been tested at the Xi'an-AMS. Ca4+ was chosen to achieve a balanced performance between Ca-41/K-41 separation and transmission efficiency. A Ca-41/Ca-40 background level of near 10(-13) was achieved without the need for 39K correction. This new analytical capability at our facility was then applied to Ca-41 tracer samples from our studies on the "White Jade" land snail shells, in which Ca-41 was used as a tracer for studying the absorption rate of calcium. |
关键词 | Ca-41 Xi'an-AMS Calcium absorption rate "White Jade" land snail |
DOI | 10.1016/j.nimb.2018.05.009 |
关键词[WOS] | BONE |
收录类别 | SCI ; SCI |
语种 | 英语 |
资助项目 | Chinese Academy of Sciences: CAS Light of West China Program[XAB2016A01] ; Youth Innovation Promotion Association CAS[2017452] ; CAS Key Technology Talent Program |
WOS研究方向 | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics |
项目资助者 | Chinese Academy of Sciences: CAS Light of West China Program ; Youth Innovation Promotion Association CAS ; CAS Key Technology Talent Program |
WOS类目 | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics, Atomic, Molecular & Chemical ; Physics, Nuclear |
WOS记录号 | WOS:000453491500029 |
出版者 | ELSEVIER SCIENCE BV |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/14475 |
专题 | 加速器质谱中心 |
通讯作者 | Fu Yun-Chong |
作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Xian AMS Ctr, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian 710061, Shaanxi, Peoples R China 4.Qingdao Natl Lab Marine Sci & Technol, Open Studio Ocean Continental Climate & Environm, Qingdao 266061, Peoples R China |
推荐引用方式 GB/T 7714 | Fu Yun-Chong,Zhou Wei-Jian,Cheng Peng,et al. A New capability for Ca-41 analysis using CaF3- at the Xi'an-AMS[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2019,438:162-165. |
APA | Fu Yun-Chong,Zhou Wei-Jian,Cheng Peng,&Zhang Lu-Yuan.(2019).A New capability for Ca-41 analysis using CaF3- at the Xi'an-AMS.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,438,162-165. |
MLA | Fu Yun-Chong,et al."A New capability for Ca-41 analysis using CaF3- at the Xi'an-AMS".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 438(2019):162-165. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论