Heidelberg 2015 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 13: Collisions & Energy Transfer
MO 13.6: Vortrag
Mittwoch, 25. März 2015, 12:30–12:45, PH/SR106
ICD in He droplets induced by electron-ion recombination — •Marcel Mudrich1, Aaron LaForge1, Frank Stienkemeier1, Robert Moshammer2, and Thomas Fennel3 — 1Universität Freiburg — 2Universität Rostock — 3MPI für Kernphysik, Heidelberg
The photoionization dynamics of helium droplets irradiated by EUV light is studied using synchrotron radiation and photoelectron-photoion coincidence imaging spectroscopy. At photon energies >46 eV, secondary processes such as elastic and inelastic electron-helium scattering become important. For large droplets (>106 atoms), an additional ionization channel dominates even over direct ionization – interatomic Coulombic decay (ICD) induced by electron impact excitation and electron-ion recombination. We present a combined experimental and theoretical study of the dynamics of ionization of large He droplets at high photon energies.