A compact and sustainable electronic module for silicon photomultipliers

TL;DR

This paper introduces a compact, cost-effective electronic module for silicon photomultipliers that integrates essential functionalities, enabling efficient signal processing and improved performance in various applications.

Contribution

The development of a unified, low-cost electronic module combining high voltage supply, preamplifier, and comparator for SiPMs is a novel contribution.

Findings

Stable bias voltage with 0.01 V accuracy achieved.

Effective signal amplification with 40 gain and 250 MHz bandwidth.

Reliable real-time signal processing demonstrated with LYSO scintillator and MAPD.

Abstract

This article presents the development of a cost-effective and efficient electronic module for silicon photomultipliers (SiPM). The electronic module combines essential functionalities, such as a high voltage power supply, a preamplifier, and a signal comparator, into a compact circuit. A high voltage power supply with a range of 30 to 140 V provides a stable bias voltage with 0.01 V accuracy for the SiPMs, while a preamplifier with 40 gain and 250 MHz bandwidth enables signal amplification necessary to extract weak signals. The comparator converts an analogue signal (higher than 8 mV) into TTL (transistor-transistor logic), which makes it easy to process and analyze with digital devices such as microcontrollers or make it possible to send signals over long distances by a cable. The module has been tested using an LYSO scintillator and a SiPM called a micropixel avalanche photodiode (MAPD). It provides a more effective and efficient solution for reading out signals from SiPMs in a variety of applications, delivering reliable and accurate results in real-time.