Bonn 2025 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 24: Poster – Interaction with VUV and X-ray light
A 24.5: Poster
Mittwoch, 12. März 2025, 17:00–19:00, Tent
Electron-Photon Coincidence Measurements at Synchrotron Facility MAX IV during TRIBs operation mode — •Johannes Viehmann1, Niklas Golchert1, Yusaku Terao1, Adrian Krone1, Arno Ehresmann1, Antti Kivimäki2, Noelle Walsh2, and Andreas Hans1 — 1Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany — 2MAX IV Laboratory, Lund University, Fotongatan 8, 224 84 Lund, Sweden
Coincidence measurements are an important experimental tool in atomic or molecular physics. Our group has used electron-photon coincidence measurements to investigate rare gas clusters after syn- chrotron irradiation. More specifically, electron times-of flight and photon counts (UV-VUV) are recorded between two consecutive syn- chrotron pulses.
However, to employ these coincidence measurements using electron time-of-flight detection techniques at synchrotron facilities requires so- called single bunch operation mode. This mode offers the needed time spacing in between synchrotron excitation pulses. Nevertheless, the lower synchrotron intensities makes this mode unattractive for many users not reliant on this kind of time resolution.
Transverse Resonance Island Buckets (TRIBs) is an operation mode where a pseudo-single bunch in addition to conventional multi bunch is accessible for users by aligning beamline optics to the respective orbitals of the bunches. Here, we present the first results from coinci- dence measurements during TRIBs operation mode at MAX IV.
Keywords: Synchrotron; Electron-Photon Coincidence; Rare Gas Clusters