Göttingen 2025 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 4: Detectors I (Scintillators)
T 4.1: Vortrag
Montag, 31. März 2025, 16:45–17:00, VG 0.110
Track position reconstruction with of a fiber-structured plastic scintillator detector (using a likelihood-based method) — Alessia Brignoli1, Andrew Picot Conabo1, Valery Dormenev2, Christian Dreisbach3, Karl Eichhorn3, Jan Friedrich3, Heiko Markus Lacker1, Martin J. Losekamm3, Anupama Reghunath1, Christian Scharf1, Ben Skodda1, Valerian von Nicolai1, Ida Woestheinrich1, Hans-Georg Zaunick2, and •Jasmin Weiß1 — 1Humboldt-Universität zu Berlin — 2Justus-Liebig-Universität Gießen — 3Technische Universität München
The CheapCal project aims to develop a low-cost, position-sensitive sampling calorimeter based on plastic scintillators. A prototype detector has been developed with 32 wavelength-shifting (WLS) fibers embedded in perpendicular grooves on the front and the back of a (25 × 25 × 0.7) cm3 scintillator plate. The WLS fibers are read out on both ends by Silicon Photomultipliers. The relatively short light attenuation length of the extruded scintillator material limits the photon collection primarily to fibers adjacent to a particle hit. We will present results from 100 GeV muon test beam data, comparing a weighted arithmetic mean hit position reconstruction technique with a likelihood-based approach. We acknowledge funding from BMBF, grant number 05H2021.
Keywords: Scintillators; Calorimeters; Likelihood; CheapCal; Test Beam