Bonn 2020 – scientific programme

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T: Fachverband Teilchenphysik

T 80: Calorimeters

T 80.4: Talk

Thursday, April 2, 2020, 17:20–17:35, H-1.003

Evaluation of Scintillator Tiles for Highly Granular Calorimeters — •Malinda de Silva, Frank Simon, and Lorenz Emberger — Max-Planck-Institut für Physik, München

Plastic scintillator tiles are key elements of highly granular imaging calorimeters being developed for HL-LHC upgrades and for experiments at future colliders and in neutrino beams. The scintillation light emitted by the tiles are read out by silicon photomultipliers placed underneath the tile. The amount of scintillation light obtained from the combination of the scintillator and the SiPM (light yield), as well as the spatial response uniformity of the scintillator elements, are crucial for the overall performance of the detectors.

In this contribution we discuss detailed studies of the impact of misalignment on the spatial response uniformity of different scintillator tiles of varying shapes, sizes and materials, performed with a uniformity scanning setup based on a radioactive source. Furthermore, a simulation-based on GEANT4 is used to simulate an electromagnetic sampling calorimeter in the context of the DUNE neutrino experiment, using non-uniformity data to evaluate the impact of misalignment on the calorimeter*s overall energy resolution.