Göttingen 2025 – scientific programme

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T: Fachverband Teilchenphysik

T 28: Silicon Detectors IV (SiPMs, HG timing)

T 28.4: Talk

Tuesday, April 1, 2025, 17:00–17:15, VG 1.101

Optimizing Silicon Photomultiplier Readout for Particle Physics Detectors — •Johannes Wenk — ALU Freiburg, Physikalisches Institut,79104 Freiburg (DE)

To optimize the performance of silicon photomultiplier (SiPM) detectors and their readout electronics, we have developed a robust, light-tight calibration and test setup providing a reproducible environment for precise SiPM measurements. This system features a pulsed laser with adjustable intensity to simulate a wide range of experimental light conditions, critical for evaluating the linearity and dynamic range of SiPMs. The setup also enables measurements of SiPM response at variable bias voltages, intrinsic noise characteristics through dark count analysis, and temperature stability during operation. Its modular design accommodates diverse SiPM geometries and configurations, facilitating systematic comparisons of different types and designs. By providing a controlled, versatile testing environment, this calibration setup supports the optimization of detectors for high-energy physics experiments such as AMBER and SHiP at CERN, where SiPM performance is critical for achieving precise measurements. * Gefördert durch das BMBF

Keywords: Silicon Photomultipliers (SiPMs); Calibration Systems; Detector Optimization; Dark Count Measurements