Self-Calibrating Gain Stabilization method for applications using Silicon Photomultipliers

Performance of Silicon Photomultipliers (SiPM) [1] strongly depends on bias voltage and temperature. The key aspect in low light detection is precision and stability of SiPMs gain. These requirements can be met by delivering accurate bias and keeping temperature on constant level. It is not very demanding task in case of single SiPM. However, in applications consisting of thousands of SiPMs it is much more problematic or even impossible to control the temperature of each detector (e.g. nuclear physics experiments). The paper presents a gain stabilization method that can be applied in multidetector measurements without the need to characterize gain-temperature-bias functions and parameters of all detectors used in the experiment.