SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 22: Calorimeter / Detector Systems I

T 22.5: Vortrag

Montag, 20. März 2023, 17:30–17:45, WIL/C133

Spatial information on particles crossing through a WOM-SiPM based liquid scintillator — •Constantin Eckardt for the SHiP-SBT collaboration — Humboldt Universität zu Berlin, Berlin, Germany

The proposed option of the SHiP surround background tagger is based on detector cells filled with liquid scintillator that are equipped with two wavelength-shifting optical modules (WOMs). 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 coupled to one end of the tube. We study the light yield distribution over the SiPMs in this ring array in a test detector equipped with one WOM as a function of the track position of cosmic muons. The possibility to obtain spatial information about this track position from the light yield distribution on the SiPM array with different optical coupling schemes between the WOM tube and the SiPM ring array is investigated.