Freiburg 2024 – scientific programme

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MO: Fachverband Molekülphysik

MO 18: Poster: Cluster

MO 18.4: Poster

Wednesday, March 13, 2024, 17:00–19:00, Tent C

New setup for synchrotron x-ray photoelectron spectroscopy on gas-phase size selected clusters — •Lotar Kurti, Phillip Stöcks, Fabian Bär, Lukas Weise, and Bernd v. Issendorff — Physikalisches Institut der Albert-Ludwigs-Universität Freiburg, Germany

A new apparatus has been constructed which will allow performing X-ray photoelectron spectroscopy on mass selected cluster ions at synchrotrons for the first time. The core of the setup is a liquid nitrogen cooled linear Paul trap, in which stored cluster ions will interact with synchrotron radiation. Emitted electrons will be guided by a specially designed magnetic field into a Hemispherical Energy Analyser, where photoelectron spectra are recorded. The clusters will be produced in a magnetron cluster source and mass selected by a quadrupole mass spectrometer before insertion into the linear ion trap. Measuring element specific binding energies of core levels is expected to yield specific information about the chemical bonding in pure and mixed metal and semiconductor clusters.

Keywords: cluster ion; photoelectron spectroscopy; Hemispherical Energy Analyser; ion trap; Hemispherical Energy Analyser