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arXiv · 2502.14618

Compact multi-channel analyzer for SiPM detectors with real time on-board signal analysis

P. Kučera·O. Urban·O. Růžička·M. Vítek·P. M. Stašek·R. Klesa·M. Holík·F. Ahmadov·A. Sadigov·A. Mammadli·Ch. Abbasova·O. Pavlas·T. Slavíček
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Abstract

Multi-channel analysers (MCAs) play a crucial role in spectral measurements, especially in the context of Silicon Photomultipliers (SiPMs) used for gamma spectroscopy. Most commercial MCAs, while highly accurate, remain cost-prohibitive for broader applications. This paper presents the design and implementation of a cost-effective MCA utilizing off-the-shelf components while achieving spectroscopy of gamma particles with reasonable resolution. The MCA board is built around the STM32G4 family microcontroller (MCU), which provides embedded analog components, timers, and high-resolution ADCs. This system is designed to reduce external component requirements, thereby decreasing costs and increasing system reliability. Experimental results demonstrate that the MCA can perform accurate real-time gamma radiation measurements with SiPM detectors. The device offers flexible connectivity options (USB, Ethernet, WiFi). The low-cost, accessible nature of the MCA opens up opportunities for educational and research applications in radiation detection.

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P. Kučera, O. Urban, O. Růžička, M. Vítek, P. M. Stašek, R. Klesa, M. Holík, F. Ahmadov, A. Sadigov, A. Mammadli, Ch. Abbasova, O. Pavlas, T. Slavíček. 2025-02-20. Compact multi-channel analyzer for SiPM detectors with real time on-board signal analysis. https://arxiv.org/abs/2502.14618

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