加速器质谱与环境科学  

Accelerator mass spectrometry and its applications in environmental science

作　　者：刘克新[1] 李坤[1] 马宏骥[1] 郭之虞[1] 

机构地区：[1]北京大学重离子物理研究所,北京100871

出　　处：《核技术》2001年第9期783-786,共4页Nuclear Techniques

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变化的测定。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14 C测量精度已经达到好于 0 .5 %的水平。在国家重大项目“夏商周断代工程”中 。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.

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 

分 类 号：P597[天文地球—地球化学]