Erlangen 2018 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 17: Posters 2: Cold Molecules and Clusters

MO 17.10: Poster

Mittwoch, 7. März 2018, 16:15–18:15, Orangerie

Collinear TOF electron impact for detecting high masses in cluster beam — •Audrey Scognamiglio, Alexander Ruf, Katrin Dulitz, Bernd von Issendorff, and Frank Stienkemeier — Physikalisches Institut, Universität Freiburg, Germany

The isolation of atoms, molecules and molecular complexes in rare cluster beams, and particularly in helium nanodroplets, offers a versatile method for the study of energetic and dynamical properties of these systems, because it provides low-temperature conditions with minimal perturbation by the environment. For the detection and mass selection of the needed high mass range, as well as to give insights into the mass and charge distribution, it is advantageous to use a combination of electron impact ionization, photo-ionization and time-of-flight (TOF) spectrometry in a collinear arrangement to the cluster beam. We combined an electron gun with a TOF spectrometer in order to provide a versatile ionization method and a good mass resolution. In this presentation, the characterization of the setup and first results using doped helium nanodroplets and rare gas clusters will be discussed.