Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 42: Detector Systems 1

T 42.4: Vortrag

Dienstag, 22. März 2022, 17:05–17:20, T-H27

Position-dependent detector response of a liquid scintillation detector instrumented with wavelength-shifting optical modules and SiPMs using cosmic muons — •Andrea Ernst for the SBT collaboration — Humboldt-Universität zu Berlin

The usage of wavelength-shifting optical modules (WOMs) as photon detectors was first proposed for the IceCube large-volume extension and then also for large-area liquid scintillator detectors as the SHiP surrounding background tagger (SBT). A WOM is a light-guiding tube coated with a UV light-absorbing paint that emits secondary photons in the visible spectrum. By total internal reflection inside the tube walls, these photons are guided to the actual photon detector, which in this case is made of a ring array of silicon photomultipliers that is coupled to one end of the tube. This contribution shows results of studies on the particle-position-dependent response of a prototype SBT-unit located at HU Berlin using cosmic muons. This work is funded by the DFG.