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利用分子束和化学发光技术，在单次碰撞条件下测量了亚稳态原子Ｈｅ（２３Ｓ）与ＣＳ２分子碰撞的Ｐｅｎｎｉｎｇ电离光学光谱．实验得到的ＣＳ＋２（￣Ａ），ＣＳ＋２（￣Ｂ）态发光光谱分辨比目前文献所报到的要好得多，因而我们首次给出了Ｐｅｎｎｉｎｇ电离反应中ＣＳ＋２（￣Ａ，￣Ｂ）态的初生态相对振动布居，其结果与光电子能谱得到的布居明显不同，对这种非Ｆｒａｎｃｋ－Ｃｏｎｄｏｎ跃迁过程本文给予了讨论，以Ｈｅ（２３Ｓ）＋Ｎ２（Ｘ）→Ｎ＋２（Ｂ）＋Ｈｅ（１Ｓ０）＋ｅ－为参考反应，分别得到了ＣＳ＋２（￣Ａ，￣Ｂ）态的生成速率和分支比，本文同时给出了亚稳态原子Ｎｅ（３Ｐ０，２）与ＣＳ２分子反应的ＣＳ＋２（￣Ｂ）态相对振动布居。
Using molecular beam and chemiluminescence techniques, the Penning ionization optical spectra of metastable atoms He (23S) colliding with CS2 molecules were measured under a single collision condition. The luminescence spectra of CS + 2 (¯A) and CS + 2 (¯B) states obtained by the experiment are much better than those reported in the current literature. Therefore, for the first time, the initial state of CS + 2 (¯A, ¯B) state in Penning ionization reaction The results show that the relative non-Franck-Condon transition is obviously different from that of the photoelectron spectroscopy. This paper presents a discussion on the transition process of this non-Franck-Condon transition from He (23S) + N2 (X) → N + 2 (B) + E- as the reference reaction, the formation rate and branching ratio of CS + 2 (¯A, ¯B) state are respectively obtained. In the same time, CS + 2 (¯B), which reacts with metastable atom Ne (3P0,2) The relative vibration of the population.