Testing and assessment of high-precision and high-accuracy AMS-radiocarbon measurements at Nanjing University, China

IF 2 3区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

Radiocarbon Pub Date : 2024-09-18 DOI:10.1017/rdc.2024.70

Hongyan Zhang, Huayu Lu, Yao Gu, Pengyu Lin, Jiangfeng Shi, Shiyuan Shi, Chenghong Liang, Xianyan Wang, Wenling An, Tao Ma, Steven W Leavitt

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引用次数: 0

Abstract

In 2018, an Ionplus 200 kV MIni-CArbon DAting System (MICADAS) accelerator mass spectrometer (AMS) was installed at the Laboratory of AMS Dating and the Environment, Nanjing University (NJU-AMS Laboratory), China. The NJU-AMS Laboratory is largely devoted to research on radiocarbon dating and 14C analysis in fields of earth, environmental and archaeological sciences. The laboratory has successfully employed various pretreatment methods, including routine pretreatment of tree rings, buried wood and subfossil wood, seeds, charcoal, pollen concentrates, organic matter, and shells. In this study, operational status of the NJU-AMS is presented, and results of radiocarbon measurements made on different sample types are reported. Measurements on international standards, references of known age, and blank samples demonstrate that the NJU-AMS runs stably and has good reproducibility on measurement of single samples. The facility is capable of measuring 14C in samples with the precision and accuracy that meet the requirements for investigating annual 14C changes, history-prehistory age dating, and Late Quaternary stratigraphic chronology research.

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在中国南京大学测试和评估高精度和高准确度 AMS 放射碳测量结果

2018年，中国南京大学AMS定年与环境实验室（NJU-AMS Laboratory）安装了一台Ionplus 200 kV MIni-CArbon DAting System（MICADAS）加速器质谱仪（AMS）。该实验室主要致力于地球、环境和考古科学领域的放射性碳年代测定和 14C 分析研究。该实验室成功采用了多种前处理方法，包括对树木年轮、埋藏木和亚化石木、种子、木炭、花粉浓缩物、有机物和贝壳的常规前处理。在本研究中，介绍了南京大学-AMS 的运行状况，并报告了对不同类型样本进行放射性碳测量的结果。对国际标准、已知年代的参照物和空白样本的测量结果表明，新日本大学-AMS 运行稳定，对单个样本的测量具有良好的再现性。该设施能够测量样品中的 14C 含量，其精度和准确度能够满足 14C 年变化调查、历史-史前年代测定和第四纪晚期地层年代学研究的要求。

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来源期刊

Radiocarbon 地学-地球化学与地球物理

CiteScore

16.20

自引率

6.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Radiocarbon serves as the leading international journal for technical and interpretive articles, date lists, and advancements in 14C and other radioisotopes relevant to archaeological, geophysical, oceanographic, and related dating methods. Established in 1959, it has published numerous seminal works and hosts the triennial International Radiocarbon Conference proceedings. The journal also features occasional special issues. Submissions encompass regular articles such as research reports, technical descriptions, and date lists, along with comments, letters to the editor, book reviews, and laboratory lists.