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Improved 3D-imaging detection at the Cryogenic Storage Ring


Jäger,  Julia
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Jäger, J. (2021). Improved 3D-imaging detection at the Cryogenic Storage Ring. Master Thesis, Ruprecht-Karls-Universität, Heidelberg.

Cite as: https://hdl.handle.net/21.11116/0000-0008-DBA6-6
The study of electron induced molecular fragmentation processes in fast-beam experiments
sets high demands on the technical realization of appropriate detection techniques.
A complete reconstruction of the total kinetic energy release and thus detailed
physical information of this process can only be deduced from the fully correlated
measurement of distances. Therefore, the reaction product detector must be able to
measure both the impact positions on the detectors surface as well as the time difference
between impacts with the highest resolution. In this work a new timing readout
for the 3D-imaging detector NICE at the Cryogenic Storage Ring in Heidelberg was set
up and tested for the first time. The upgrade is based on the silicon photomultiplier
technology, employing a multi-pixel detector with high intrinsic time resolution. First
performance test show promising results: it was possible to resolve spatially well separated
impacts with a time difference down to zero, exceeding the time resolution limit
of the pre-existing setup.