Double ionization of the hydrogen sulfide molecule by electron impact: Influence of the target orientation on multiple differential cross sections

Bimolecular reactions of S2+ with Ar, H2 and N2: reactivity and dynamics

“…103,104 Experiments studying the electron ionization of H 2 S have previously reported the formation of S 2+ , but provide little information on the S 2+ states populated. 100,105,106 In our experiments, after the formation of S 2+ from H 2 S via electron ionization in the source region, the S 2+ dications must travel through the apparatus to the interaction region where they can collide with the appropriate neutral species. In the time taken to travel to the interaction region (B100 ms), one would expect S 2+ formed in higher lying excited states to radiatively decay to lower energy, metastable, states, where such a decay is 'allowed'.…”