Progress in AMS Measurement of 182Hf at CIAE  

作　　者：董克君 何明 李振宇 王祥高 李朝历 游曲波 包轶文 武绍勇 沈洪涛 管永精 张伟 凡金龙 杨磊 孙宏清 丁有钱 贺国珠 李世琢 龚杰 何贤文 陆丽燕 王伟 胡跃明 袁坚 张生栋 常永福 姜山 

机构地区：[1]China Institute of Atomic Energy, P.O.Box 275 (50), Beijing 102413 [2]College of Physics Science and Technology, Guangxi University, Nanning 530004 [3]Northwest Institute of Nuclear Technology, P.O. Box 69-14, Xi 'an 710024

出　　处：《Chinese Physics Letters》2010年第11期27-30,共4页中国物理快报（英文版）

基　　金：Supported by the Foundation of China Academy of Engineering Physics under Grant No 10576040, and the National Natural Science Foundation of China under Grant No 10705054.

摘　　要：Accelerator mass spectrometry （AMS） is one of the most promising methods to detect minute amounts of 182Hf. However, the sensitivity of 5×10^-11 for ^182Hf/180Hf obtained previously by the AMS method at China Institute of Atomic Energy （CIAE） cannot meet the requirement of some applications. We present some new improvements of measurement method for AMS measurement of 182Hf at the CIAE HI？13 tandem accelerator system. As a result, a sensitivity of 1.0×10^-11 for 182Hf/180Hf is achieved.Accelerator mass spectrometry （AMS） is one of the most promising methods to detect minute amounts of 182Hf. However, the sensitivity of 5×10^-11 for ^182Hf/180Hf obtained previously by the AMS method at China Institute of Atomic Energy （CIAE） cannot meet the requirement of some applications. We present some new improvements of measurement method for AMS measurement of 182Hf at the CIAE HI？13 tandem accelerator system. As a result, a sensitivity of 1.0×10^-11 for 182Hf/180Hf is achieved.

关 键 词：ACCELERATORS beams and electromagnetism Nuclear physics Instrumentation and measurement Particle physics and field theory 

分 类 号：TL817.4[核科学技术—核技术及应用] G311[文化科学]