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Karlsruhe 2024 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 63: Detectors 6 (calorimeters)

T 63.4: Vortrag

Mittwoch, 6. März 2024, 16:45–17:00, Geb. 30.23: 2/1

First test beam measurements of a position-sensitive wavelength-shifting fibre structured plastic scintillator detector (CheapCal)Alessia Brignoli1, Andrew Picot Conaboy1, Valery Dormenev2, Christian Dreisbach3, Karl Eichhorn3, Jan Friedrich3, Heiko Markus Lacker1, Martin J. Losekamm3, Anupama Reghunath1, Christian Scharf1, Ben Skodda1, •Valerian von Nicolai1, Ida Wöstheinrich1, and Hans-Georg Zaunick21Humboldt-Universität zu Berlin — 2Justus-Liebig-Universität Gießen — 3Technische Universität München

The CheapCal project aims to develop a low-cost and easy-to-build detector for charged particle detection with a spatial resolution of about a centimetre or better. The detector is based on a (25 × 25)  cm2 extruded plastic scintillator with a short light attenuation length, which is structured with wavelength-shifting fibres embedded into the material at a fibre-to-fibre distance of 1.5 cm. The fibres are read-out at each end by a silicon photomultiplier (SiPM). After proof-of-principle measurements in the laboratory with a Sr-90 source, we constructed a first detector with fibres in orthogonal orientation on the front and back of the scintillator. We successfully tested this prototype with a 100 GeV muon beam at the AMBER experiment at CERN, using a beam telescope consisting of silicon-strip detectors for tracking. The initial results of this test campaign will be presented. We acknowledge the support from BMBF via the High-D consortium.

Keywords: CheapCal; Scintillator; Test Beam; SiPM

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