Speaker
Description
The SiPM-on-Tile technology has been adopted in several calorimeter subsystems of ePIC, including the forward and backward hadronic calorimeters (1.5 < η < 3.0), the high-granularity insert (3.0 < η < 4.0), and the Zero-Degree Calorimeter (ZDC, η > 6.0). To validate the design and assess detector performance, we developed prototypes for both the insert and the ZDC. These prototypes were tested in beam campaigns at the STAR hall and at the NASA Space Radiation Laboratory (NSRL) at Brookhaven National Lab (BNL). At the STAR hall, the prototypes were exposed to particles from 200 GeV Au+Au collisions, providing measurements of detector response in a realistic collision environment. At NSRL, we performed a systematic study of SiPM response to different levels of irradiation, evaluating pedestal stability and MIP calibration. Together, these tests provide comprehensive validation of the SiPM-on-Tile technology for ePIC calorimetry.
