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München 2019 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 62: Instrumentation XIII

HK 62.2: Talk

Friday, March 22, 2019, 14:30–14:45, HS 11

200µm Scintillating Fiber Detector with SiPM Readout — •Ashton Falduto1, Junki Tanaka1, and Thomas Aumann1, 2 for the R3B collaboration — 1TU Darmstadt — 2GSI Helmholtzzentrum

Being able to track charged particles using scintillation light detection near magnetic fields is currently challenging due to magnetic field influences on the often used photomultiplier tubes. However, with the development of a new Silicon Photomultiplier (SiPM) Fiber detector, it is now possible to detect these particles using a unique combination of SiPM, Preamplifing Discriminators (PADI) and an FPGA-based Time-to-Digital Converters (TDC). The detector is built from over two thousand 200µm round plastic scintillator fibers arranged in a unique pattern. The position is determined when light is detected by one of these scintillating fibers and a "hit" or "no hit" signal is produced. In this presentation, I will explain how the detector was constructed and how the electronics work together. I will show where the detector is located during experimental runs. And finally, I will discuss the performance of the detector during an on-line experiment.

This work is supported by the BMBF project 05P15RDFN1 and the GSI-TU Darmstadt cooperation.

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