HEP2026: 42nd Conference on Recent Developments in High Energy Physics and Cosmology [NTUA] Jul 8 – 11, 2026

Characterization of SiPMs using Radiation Sources for Quantum Random Number Generation

10 Jul 2026, 17:40

20m

Main Hall (Level 1) (National Technical University of Athens)

Detectors

Speaker

Evangelos Xirotyris Chrysos (National Technical Univ. of Athens (GR))

Description

In this work, a Silicon Photomultiplier (SiPM) detector was
assembled and experimentally characterized using the CAEN Premium SiPM setup. The detector response was studied under controlled conditions using pulsed LED laser illumination, enabling the extraction of key SiPM parameters such as gain, dark count rate, optical crosstalk, after-pulsing probability, and charge resolution. An absolute energy calibration was also performed using a (¹³⁷Cs) γ-ray source coupled to a LYSO scintillator, demonstrating the spectroscopic capabilities of the system through the identification of characteristic photoelectric
peak and Compton continuum. In addition, the intrinsic noise properties of the SiPM were analyzed as a potential entropy source for Quantum Random Number Generation (QRNG). Overall, this work provides a comprehensive performance evaluation and experimental characterization of the SiPM, establishing a validated framework for detector studies, scintillation-based spectroscopy, and future quantum applications.

Presentation materials

HEP2026_Vagelis_Xirotyris.pdf