Olsson Emelie, Ayari Tarek, Ideböhn Veronica, Wallner Måns, Squibb Richard J, Andersson Jonas, Roos Andreas Hult, Stranges Stefano, Dyke John M, Eland John H D, Hochlaf Majdi, Feifel Raimund
Department of Physics, University of Gothenburg, Origovägen 6B, 412 58, Gothenburg, Sweden.
Université Gustave Eiffel, COSYS/IMSE, 5 Bd Descartes, 77454, Champs sur Marne, France.
Sci Rep. 2022 Jul 18;12(1):12236. doi: 10.1038/s41598-022-16327-8.
Using time-of-flight multiple electron and ion coincidence techniques in combination with a helium gas discharge lamp and synchrotron radiation, the double ionisation spectrum of disulfur (S[Formula: see text]) and the subsequent fragmentation dynamics of its dication are investigated. The S[Formula: see text] sample was produced by heating mercury sulfide (HgS), whose vapour at a suitably chosen temperature consists primarily of two constituents: S[Formula: see text] and atomic Hg. A multi-particle-coincidence technique is thus particularly useful for retrieving spectra of S[Formula: see text] from ionisation of the mixed vapour. The results obtained are compared with detailed calculations of the electronic structure and potential energy curves of S[Formula: see text] which are also presented. These computations are carried out using configuration interaction methodology. The experimental results are interpreted with and strongly supported by the computational results.
利用飞行时间多电子与离子符合技术，结合氦气放电灯和同步辐射，研究了二硫（S₂）的双电离光谱及其双离子的后续碎裂动力学。S₂样品通过加热硫化汞（HgS）产生，在适当选择的温度下，其蒸气主要由两种成分组成：S₂和汞原子。因此，多粒子符合技术对于从混合蒸气的电离中获取S₂的光谱特别有用。将获得的结果与同样给出的S₂电子结构和势能曲线的详细计算进行比较。这些计算使用组态相互作用方法进行。实验结果得到了计算结果的解释并得到了有力支持。
