Speaker
Description
Silicon based photo-detectors are innovative light collecting devices and represent a successful technology in the field of direct dark matter search detectors based on liquified noble gases.
The DarkSide collaboration started a dedicated development and customization of SiPM technology for its specific needs resulting in the design, production and assembly of a large surface module of 20x20 cm$^2$ to be used as PhotoDetectionUnit (PDU) in the DarkSide-20k experiment.
Production of a large number of such devices, as needed to cover about 15 m$^2$ of active surface inside the DarkSide-20k detector, requires a robust testing and validation process.
In order to match this requirement a dedicated test facility for the PDU tests was designed, integrated and commissioned at INFN Naples laboratory. The first commissioning test was successfully performed in 2021. Since then a number of testing campaigns were performed.
Results of these tests as well as a detailed description of the facility will be presented and discussed. Possible upgrades on the system will be also reported.
