科研之友
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摘要
The long-lived isotope Mn-53 cosmogenically produced in situ is a very useful indicator for geochronological dating. A new Mn-53 accelerator-mass-spectrometry (AMS) measurement method is developed based on the HI-13 Tandem Accelerator and Delta E-Q3D detection system at China Institute of Atomic Energy. The performance of Cr-53 isobar separation and suppression is tested by a series of Mn-53 standards and commercial MnO samples. The results show that the Delta E-Q3D detection system brought about an overall suppression factor of more than 107 for the interfering isobar Cr-53.
- 出版日期2011-7
- 单位中国原子能科学研究院; 广西大学; 广西师范大学; 厦门大学
