Improvement on AMS Measurement of 236 U at CIAE
WANG Xiang-Gao1,2** , HE Ming1 , DONG Ke-Jun1 , JIANG Shan1**
1 China Institute of Atomic Energy, Beijing 102413 2 College of Physics Science and Technology, Guangxi University, Nanning 530004
Abstract ：In order to improve the detection efficiency and sensitivity for 236 U measurement at China Institute of Atomic Energy (CIAE) accelerator mass spectrometry (AMS) system to meet the requirement of some applications, we present some new improvements of the measurement method for AMS measurement of 236 U at CIAE AMS. The main features of the method include: (i) measurement optimization; (ii) improvement of the TOF time resolution ～500 ps. Based on these improvements, the sensitivity is ～10?11 for 236 U/238 U in the present work, higher than before (236 U/238 U～5×10?10 ).
收稿日期: 2012-03-05
出版日期: 2012-07-31
:
07.75.+h
(Mass spectrometers)
29.30.-h
(Spectrometers and spectroscopic techniques)
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2012, Vol. 29 
