Orateur
Description
Silicon PhotoMultipliers (SiPMs) are a promising technology as innovative
photodetectors for future high-energy particle-physics experiment, given their fast time
response, small dimensions and high photo-detection efficiency. Possible applications
are in the Ring Imaging Cherenkov Detectors which are fundamental systems for
particle identification. In this field of application, the main drawback of SiPMs is related
to radiation damage which provokes a large increase in the dark cunt rate (DCR) of
the sensors and thus requires mitigation strategies such as the cooling at low
temperatures and the in-situ annealing to allow operation in very harsh environment.
An extensive test campaign is ongoing to measure SiPM performances as a function
of many parameters such as the temperature, the operating conditions and the
irradiation level. Results of I-V curves, Gain, DCR and Time Resolution, as a function
of the over-voltage, temperature and for few irradiation steps, will be presented for
some commercially available SiPMs.
