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

Erk, Benjamin; Rolles, Daniel; Foucar, Lutz; Rudek, Benedikt; Epp, S. W.; Cryle, Max; Bostedt, C; Schorb, S; Bozek, J; Rouzee, A; Hundertmark, A; Marchenko, T; Simon, M; Filsinger, Frank; Christensen, L; De, S; Trippel, S; Küpper, Jochen; Stapelfeldt, H; Wada, S; Ueda, K; Swiggers, M; Messerschmidt, M; Schröter, Claus Dieter; Moshammer, Robert; Schlichting, I.; Ullrich, Joachim H.; Rudenko, Artem

doi:10.1088/0953-4075/46/16/164031

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

MPG-Autoren

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Erk, Benjamin
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;
Deutsches Elektronen-Synchrotron (DESY);
Max Planck Advanced Study Group at CFEL;

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Rudek, Benedikt
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;
Deutsches Elektronen-Synchrotron (DESY);
Max Planck Advanced Study Group at CFEL;

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Epp, S. W.
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;
Max Planck Advanced Study Group at CFEL;

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Filsinger, Frank
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Schröter, Claus Dieter
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

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Moshammer, Robert
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;
Max Planck Advanced Study Group at CFEL;

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Ullrich, Joachim H.
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;
Max Planck Advanced Study Group at CFEL;
Physikalisch-Technische Bundesanstalt;

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Rudenko, Artem
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;
Deutsches Elektronen-Synchrotron (DESY);
J.R. Macdonald Laboratory, Department of Physics, Kansas State University;

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Zitation

Erk, B., Rolles, D., Foucar, L., Rudek, B., Epp, S. W., Cryle, M., et al. (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(16): 164031. doi:10.1088/0953-4075/46/16/164031.

Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0014-B4A9-E

Zusammenfassung

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.