An improved FT-TIMS method of measuring uranium isotope ratios in the uranium-bearing particles

作者：Chen Yan^*; Wang Fan; Zhao Yong Gang; Li Li Li; Zhang Yan; Shen Yan; Chang Zhi Yuan; Guo Shi Lun; Wang Xiao Ming; Cui Jian Yong; Liu Yu Ang

来源：Radiation Measurements, 2015, 83: 63-67.

DOI：10.1016/j.radmeas.2015.04.005

• Uranium-bearing particle
• Working standards
• Isotope ratio
• FT-TIMS

An improved method of Fission Track technique combined with Thermal Ionization Mass Spectrometry (FT-TIMS) was established in order to determine isotope ratio of uranium-bearing particle. Working standard of uranium oxide particles with a defined diameter and isotopic composition were prepared and used to review the method. Results showed an excellent agreement with certified values. The developed method was used to analyze isotope ratio of single uranium-bearing particle in swipe samples successfully. The analysis results of uranium-bearing particles in swipe samples accorded with the operation history of the origin.

• 出版日期2015-12
• 单位中国原子能科学研究院; 核工业北京地质研究院