Speaker
Description
PbWO₄ crystals combined with SiPM readout are promising for compact, radiation-hard calorimetry in future high-energy physics experiments. We present a compact readout circuit developed for PbWO₄ scintillation detectors. The module integrates a 2×2 or 4×4 SiPM array with a preamplifier stage, supporting operation with an arbitrary number of sensors without degrading timing performance. The design features SiPM bias control, adjustable gain and offset via USB/RS485, and EEPROM-based parameter storage in a low-power, compact form factor. The output is compatible with up to 1 V/50 Ω.
Prototype systems were tested with multi-crystal PbWO₄ arrays under beam conditions from 100 MeV to 5 GeV. The measurements demonstrated fast response, good spectral resolution, and stable operation. Full characterization results will be presented, highlighting the potential of this system for next-generation calorimeters in high-radiation, high-rate environments.