高频离子源形成的HD^+离子束中H_3^+比例实测研究

Measurement on the ratio of HD^+and H_3^+ in hydrogen mixed gas ion source

HD+在是研究分子离子同位素效应等方面最简单和理想的离子,并且在天体物理等领域有重要应用.但在实验测量其核间距和结合能研究中不可避免会混入H3+从而对实验结果产生影响.本文在实际测量获取产物各种物理量的基础上,采取对比与分析的反推方法,将离子源中两种离子的比例实际测量出来,从而能较为准确地研究HD+的结构和性质.将实验测量的结果与理论推算进行比较,得到了相对较好的结果.

The molecular ion HD＋ is important in the astrophysics and astrochemistry study,but in the experimental detection and measurement,the experimental results of HD＋ may be influenced by the in-evitable mixing with H3 ＋.This paper adopts the method of comparison and analysis of Coulomb explo-sion products,the proportions of the two kinds of ions are obtained in HF ion source,which can reach more accurate study on the structure and properties of HD＋.The relatively good results can be obtained by comparing the experiment results with theoretical calculations.This method will provide a useful ref-erence and inspiration for similar researches.