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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

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons49162

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;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons49160

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;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30451

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

http://pubman.mpdl.mpg.de/cone/persons/resource/persons21507

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

http://pubman.mpdl.mpg.de/cone/persons/resource/persons31014

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

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30822

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

http://pubman.mpdl.mpg.de/cone/persons/resource/persons31125

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;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30960

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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Citation

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.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0014-55A0-9
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.