光致漂移法铷同位素分离研究  

Research on Rubidium Isotope Separation by Light-induced Drift Method

作　　者：杨佳琦 刘涛[1,2] 金策 凌菲彤[1] 孙桂侠 王晓鹏[1] YANG Jiaqi;LIU Tao;JIN Ce;LING Feitong;SUN Guixia;WANG Xiaopeng(Research Institute of Physical and Chemical Engineering of Nuclear Industry,Tianjin 300180,China;Science and Technology on Particle Transport and Separation Laboratory,Tianjin 300180,China)

机构地区：[1]核工业理化工程研究院,天津300180 [2]粒子输运与富集技术重点实验室,天津300180

出　　处：《原子能科学技术》2021年第S02期399-406,共8页Atomic Energy Science and Technology

基　　金：中核集团“青年英才”项目。

摘　　要：实现铷同位素的高效分离对我国导航定位技术的发展具有重要意义,为填补国内在新型铷同位素分离技术领域的研究空白,本文对光致漂移法实现铷同位素分离技术进行了探索。建立了分离实验装置,利用光致漂移法针对铷同位素分离开展实验研究。采用直接吸收光谱法测量85 Rb和87 Rb的同位素比率,对光致漂移法铷同位素分离实验中的同位素分离效果进行验证。实验结果表明,采用光致漂移法进行铷同位素分离时,通过改变激发光频率,可分别实现85 Rb和87 Rb的富集。吸收光谱实验数据证明了该方法具有明显的分离效果,同位素比率随激发光频率的变化符合光致漂移原理的定性分析。Efficient separation of rubidium isotopes is of great significance for the development of navigation and positioning technology in our country.In order to fill the research gap in the field of new rubidium isotope separation technology,the technology of rubidium isotope separation by light-induced drift was explored.An experimental device for rubidium isotope separation was established.The isotope ratio was measured by direct absorption spectroscopy to verify the separation effect in the rubidium isotope separation experiment.The experimental results show that when the light-induced drift method is used for the separation of rubidium isotopes,the enrichment of 85 Rb and 87 Rb can be achieved by changing the excitation laser frequency.The experimental data of absorption spectrum proves that the method has obvious separation effect,and the change of isotope ratio with excitation laser frequency accords with the qualitative analysis of light-induced drift principle.

关 键 词：同位素分离 光致漂移 铷同位素 

分 类 号：O562[理学—原子与分子物理]