June 30, 2025 to July 4, 2025
Europe/Vienna timezone

Electron-Photon Coincidence Measurements at the Syn- chrotron Facility MAX IV during TRIBs operation mode

Jul 1, 2025, 3:15 PM
1h 45m
Poster only Atomic and molecular spectroscopy, photo-induced processes Poster Session 2

Speaker

Johannes Viehmann (Universität Kassel)

Description

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.

Authors

Adrian Krone (Universität Kassel) Andreas Hans (Universität Kassel) Andreas Hans (Universität Kassel) Antti Kivimäki (MAX IV Laboratory) Arno Ehresmann (Universität Kassel) Johannes Viehmann (Universität Kassel) Noelle Walsh (MAX IV Laboratory) Yusaku Terao (Universität Kassel)

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