AMS Measurement of 36Cl with a Q3D Magnetic Spectrometer at CIAE

被引：0

作者：

李朝历 ^{[1
]}

何明 ^{[1
]}

张伟 ^{[2
]}

武绍勇 ^{[1
]}

李振宇 ^{[1
]}

何贤文 ^{[2
]}

刘建成 ^{[1
]}

董克君 ^{[1
]}

姜山 ^{[1
]}

机构：

[1] Department of Nuclear physics, China Institute of Atomic Energy (CIAE)

[2] Physics Science and Engineering Technology Department, Guangxi University

来源：

Plasma Science and Technology | 2012年 / 06期

基金：

中国国家自然科学基金;

关键词：

36Cl; AMS; E-Q3D; isobar separation;

D O I：

暂无

中图分类号：

TL817.5 [];

学科分类号：

082704 ;

摘要：

The ratio of 36Cl/Cl can determine the exposure age of surface rocks and monitor the secular equilibrium of 36Cl of sedimentary and igneous rock in groundwater. Due to the uncertainty effects of different chemical separation processes for removing 36S, there is a high degree of uncertainty in 36Cl accelerator mass spectrometry (AMS) measurements if the ratio of 36Cl/Cl is lower than 1014 . A 36Cl AMS higher sensitivity measurement has been set up by using a E-Q3D method at the China Institute of Atomic Energy (CIAE). The performances of E-Q3D method for 36Cl-AMS measurement had been systemically studied. The experimental results show that the E-Q3D method has a higher isobar suppression factor. Taking advantage of direct removing 36S, the sample preparation can be simplified and the uncertainty effects of different chemical separation processes can be reduced in 36Cl AMS measurements.

引用

页码：543 / 547

页数：5