Gießen 2024 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 72: Poster

HK 72.15: Poster

Donnerstag, 14. März 2024, 17:15–18:45, HBR 14: Foyer

Development of a Tracking Detector for Charged Particles Based on Scintillating Fibers — •Lara Dippel, Hans-Georg Zaunick, and Kai-Thomas Brinkmann — II. Physikalisches Institut, Justus-Liebig-Universität Giessen

The primary motivation of this work was to develop a detector which produces a fast and precise time signal for time-of-flight measurements performed at the Marburger Ion Beam Therapy Center (MIT), where the beam intensity can reach up to 1.9× 10⁹ particles/s. For a first prototype, eight plastic scintillating fibers with a diameter of 1 mm were chosen as the detection material and individually read out by SiPMs. Different fiber coatings were tested and compared to maximize the light yield of the fibers. After a first in-beam test at the MIT, a new mechanical setup and signal-processing chain were developed and tested again at the MIT and the Cooler Synchrotron (COSY) in Juelich. The latest setup consists of two layers with 16 fibers each and was employed as a fast trigger and veto detector for neutron detection and particle identification, as well as a two-dimensional tracking detector. For the next iteration of this detector system, the read-out chain will be improved to primarily enhance the spatial resolution which will be compared with the tracking detectors currently in use at the MIT facility. Supported by BMBF via the High-D consortium.

Keywords: Tracking Detector; Scintillating Fibers