Inner-shell multiple ionization of polyatomic molecules with an intense x-ray free-electron laser studied by coincident ion momentum imaging

Benjamin Erk, Daniel Rolles, Lutz Foucar, Benedikt Rudek, Sascha W Epp, Max J Cryle, Christoph Bostedt, Sebastian Schorb, John D Bozek, Arnaud Rouzee, Axel Hundertmark, Tatiana Marchenko, Marc Simon, Frank Filsinger, Lauge Christensen, Sankar De, Sebastian Trippel, Jochen Kupper, Henrik Stapelfeldt, Shin-ichi WadaKiyoshi Ueda, Michele Swiggers, Marc Messerschmidt, Claus D Schroter, Robert Moshammer, Ilme Schlichting, Joachim Ullrich, Artem Rudenko

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20 Citations (Scopus)

Abstract

The ionization and fragmentation of two selenium containing hydrocarbon molecules, methylselenol (CH3SeH) and ethylselenol (C2H5SeH), by intense (>1017 W cm-2 ) 5 fs x-ray pulses with photon energies of 1.7 and 2 keV has been studied by means of coincident ion momentum spectroscopy. Measuring charge states and ion kinetic energies, we find signatures of charge redistribution within the molecular environment. Furthermore, by analyzing fragment ion angular correlations, we can determine the laboratory-frame orientation of individual molecules and thus investigate the fragmentation dynamics in the molecular frame. This allows distinguishing protons originating from different molecular sites along with identifying the reaction channels that lead to their emission.
Original languageEnglish
Pages (from-to)1 - 12
Number of pages12
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume46
Issue numberArticle #164031
DOIs
Publication statusPublished - 2013
Externally publishedYes

Cite this

Erk, B., Rolles, D., Foucar, L., Rudek, B., Epp, S. W., Cryle, M. J., Bostedt, C., Schorb, S., Bozek, J. D., Rouzee, A., Hundertmark, A., Marchenko, T., Simon, M., Filsinger, F., Christensen, L., De, S., Trippel, S., Kupper, J., Stapelfeldt, H., ... Rudenko, A. (2013). Inner-shell multiple ionization of polyatomic molecules with an intense x-ray free-electron laser studied by coincident ion momentum imaging. Journal of Physics B: Atomic, Molecular and Optical Physics, 46(Article #164031), 1 - 12. https://doi.org/10.1088/0953-4075/46/16/164031