AI 中文总结
该研究为开展分子物种研究，升级了静电存储环FLSR，测量了O⁻的电子亲和能与基态精细结构，验证了其光谱应用的性能与精度。
AI 中文摘要
为开展分子物种研究，本文在法兰克福大学室温静电低能存储环FLSR中，对循环氧负离子开展了可调谐激光光脱附研究的可达精度调研。为此，原设计用于正离子反应动力学研究的FLSR，通过加装负离子源、可调谐高重复频率激光系统，以及在激光与离子束间构建横向相互作用区完成升级。文中讨论了作为校准标准的O⁻电子亲和能与基态精细结构的测量结果，展现了FLSR这一新型光谱应用的性能与精度。
英文摘要
The achievable precision of photodetachment studies via tunable laser light has been investigated on circulating oxygen anions at the room-temperature electrostatic low-energy storage ring of Frankfurt University (FLSR) in preparation of investigations on molecular species. For this purpose, the FLSR, originally designed for reaction dynamics studies on positive ions, was upgraded by a source for anions, by the installation of a tunable high repetition rate laser system and by implementation of a transversal interaction region between laser and ion beam. Results on the electron affinity and the ground state fine structure of O$^{-}$, which both serve as a calibration standard, are discussed, exhibiting the performance and accuracy of this new spectroscopic application of the FLSR.
Comments7 pages, 3 figures
