Karlsruhe 2024 – scientific programme

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T: Fachverband Teilchenphysik

T 12: Detectors 1 (electronics)

T 12.1: Talk

Monday, March 4, 2024, 16:00–16:15, Geb. 30.23: 2/1

SIPM based cosmic muon detector wih FPGA implemented digitization — •Erik Ehlert, Dmitry Eliseev, Carsten Presser, Markus Merschmeyer, and Thomas Hebbeker — III. Physikalisches Institut A, RWTH Aachen University

A cosmic muon hodoscope which is to be used as a reference detector was designed and is undergoing the first performance tests. This hodoscope consists of an array of scintillator strips which are each coupled to a pair of Silicon-Photomultipliers (SiPMs). The signal digitization is performed directly with a Field-Programmable Gate Array (FPGA). This is achieved by using a Multi-Voltage Thresholding (MVT) approach utilizing solely FPGA's internal comparators, effectively implementing a flash ADC. With this setup a sampling rate of 800 Megasamples per second is reached.

The talk provides an overview of the detector setup, including technical design and electronic readout chain. Performance characteristics of the detector are presented as well.

Keywords: SiPM; FPGA; Scintillator; Hodoscope