Development of non-destructive isotope measurement of the natural galena (PbS) using negative muon beams

IF 2.5 4区 化学 Q3 CHEMISTRY, ANALYTICAL
K. Terada, K. Ninomiya, A. Sato, D. Tomono, Y. Kawashima, M. Inagaki, A. Nambu, T. Kudo, T. Osawa, M. K. Kubo
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引用次数: 0

Abstract

In Earth and planetary science, Pb isotopic composition is well known to play a key role in deciphering the origin and evolution of materials because they provide unique chronological and/or indigenous regional information as a radiogenic daughter nuclide from U and Th. To determine such an isotopic composition, mass spectrometers have been widely used over several decades, which requires a destructive/consuming treatment such as sputtering, laser ablation and thermal ionization. Here, we first report the non-destructive Pb isotopic measurement of natural galena (PbS) using the energy shift of muon-induced characteristic X-rays. The observed Pb isotopic composition of the natural galena is in good agreement with that obtained by conventional mass spectrometry. Such a muon-based Pb isotopic analysis method is expected to be applied to identify the production area of archaeological artefacts (e.g. bronze products), where non-destructive analysis is highly desirable compared to conventional mass spectrometry.
利用负μ介子束开发天然方铅矿(PbS)无损同位素测量技术
在地球和行星科学中,众所周知,铅同位素组成在破译物质的起源和演化方面起着关键作用,因为它们作为铀和钍的放射性子核素,提供了独特的年代学和/或本地区域信息。为了测定这种同位素组成,几十年来质谱仪得到了广泛应用,但这需要进行破坏性/消耗性处理,如溅射、激光烧蚀和热电离。在此,我们首次报告了利用μ介子诱导特征 X 射线的能量位移对天然方铅矿(PbS)进行非破坏性铅同位素测量的结果。所观测到的天然方铅矿的铅同位素组成与传统质谱法所获得的结果十分吻合。这种基于μ介子的铅同位素分析方法有望应用于确定考古文物(如青铜制品)的产地,与传统质谱法相比,非破坏性分析是非常理想的。
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来源期刊
Journal of Analytical Science and Technology
Journal of Analytical Science and Technology Environmental Science-General Environmental Science
CiteScore
4.00
自引率
4.20%
发文量
39
审稿时长
13 weeks
期刊介绍: The Journal of Analytical Science and Technology (JAST) is a fully open access peer-reviewed scientific journal published under the brand SpringerOpen. JAST was launched by Korea Basic Science Institute in 2010. JAST publishes original research and review articles on all aspects of analytical principles, techniques, methods, procedures, and equipment. JAST’s vision is to be an internationally influential and widely read analytical science journal. Our mission is to inform and stimulate researchers to make significant professional achievements in science. We aim to provide scientists, researchers, and students worldwide with unlimited access to the latest advances of the analytical sciences.
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