SMuK 2023 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

HK: Fachverband Physik der Hadronen und Kerne

HK 25: Instrumentation VIII

HK 25.1: Vortrag

Mittwoch, 22. März 2023, 14:00–14:15, SCH/A.101

Bending Losses in Scintillating-Plastic Fibers* — Christian Dreisbach, Karl Eichhorn, Jan Friedrich, Igor Konorov, Martin Losekamm, Stephan Paul, •Alicia Pechan, and Thomas Pöschl — Technische Universität München, Physik-Department E18, Garching, Germany

The AMBER experiment at CERN’s Super Proton Synchroton aims to measure the proton radius in high-energy elastic muon-proton scattering. At the Technical University of Munich, we develop a scintillating-fiber hodoscope to provide precise time information for the incoming and outgoing muons. Each detector consists of four layers of 500-µm scintillating-plastic fibers read out by silicon photomultiplier (SiPM) arrays.

The detector layout requires bending of the fibers towards the SiPMs, resulting in signal-height variations due to the associated bending losses. To characterize this effect, we performed a dedicated experiment to study the dependence of the losses on the bending radius for the scintillating fibers we use. In this contribution, we present the experimental setup and the results of this investigation.

*funded by the DFG under Germany*s Excellence Strategy - EXC2094 - 390783311 and BMBF Verbundforschung (05H21WORD1 HighD)