| 加速器质谱与环境科学 |
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| 引用本文： | 刘克新,李坤,马宏骥,郭之虞.加速器质谱与环境科学[J].核技术,2001,24(9):783-786. |
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| 作者姓名： | 刘克新 李坤 马宏骥 郭之虞 |
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| 作者单位： | 北京大学重离子物理研究所,北京,100871 |
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| 摘 要： | 介绍了近年来国内外用加速器质谱计在环境科学方面的研究工作，包括测量城市空气污染、监测来自核设施的泄漏和有关全球环境的测定。为了适应多学科应用研究的需要，经过对装置进行大规模的改造和对高精度14^C测年方法的研究，北京大学加速器质谱计^14C测量精度已经达到好于0．5％的水平。在国家重大项目“夏商周断工程”中，测定了大量样品并结合考古已经达到好于0．5％的水平。在国家重大项目“夏商周断代工程”中，测定了大量样品并结合考古信息给出了比较可靠的年表。
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| 关 键 词： | 加速器质谱计 “夏商周断代工程” 碳14测年方法 同位素地质学 核分析技术 一氧化碳示踪剂 年代学 |
| 修稿时间： | 2000年12月12 |
Accelerator mass spectrometry and its applications in environmental science |
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| LIU Kexin,LI Kun,MA Hongji,GUO Zhiyu.Accelerator mass spectrometry and its applications in environmental science[J].Nuclear Techniques,2001,24(9):783-786. |
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| Authors: | LIU Kexin LI Kun MA Hongji GUO Zhiyu |
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| Abstract: | Some important work worldwide in environmental science, like urban air pollution, discharges of radioactive wastes from nuclear plants, and global climate change were introduced. Based on the improvements of facility and studies on 14 C dating method, a precision better than 0.5 % has been reached for the PKUAMS. A large number of samples have been measured for the Xia-Shang-Zhou Chronology project. 14 C data of PKUAMS have made important contributions to creation of more reliable chronological table of Xia, Shang and Zhou dynasties. The improvements of PKUAMS are of benefit to the applications in environmental science in the future. |
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| Keywords: | AMS 14 C dating 14 CO tracer Project of Xia-Shang-Zhou Chronology |
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