Erlangen 2022 – scientific programme

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MO: Fachverband Molekülphysik

MO 8: Poster 1

MO 8.6: Poster

Tuesday, March 15, 2022, 16:30–18:30, P

Improved XUV magnetic bottle photoelectron spectrometer — •Kariman Elshimi, Fabian Bär, Philipp Elsässer, and Bernd v. Issendorff — Physikalisches Institut der Albert-Ludwigs-Universität Freiburg

A new XUV magnetic bottle photoelectron spectrometer (MBPES) has been constructed for studying the electronic structure and the dynamics of free mass-selected and temperature-controlled clusters at free-electron lasers (FEL). This unique spectrometer system includes cryogenic (<4K) interaction region and special ion optics designed specifically to suppress the background contribution in the XUV range.

The resolution of the spectrometer can be improved by both static deceleration and a time-dependent deceleration focusing the electron package. Here, we discuss test measurements on atoms and molecules demonstrating that with the new deceleration scheme resolutions of Δ E/E = 0.5% can be reached.