Multimodal simulation of large area silicon photomultipliers for time resolution optimization

The Silicon Photomultiplier (SiPM) sensor is replacing the extensive use of Tube (PMT) in fast timing applications. These photo-sensors can be applied different fields such as medical imaging systems like Positron Emission Tomography (PET), LIDAR technologies or High Energy Physics (HEP) experiments. More specific, Time-of-Flight PET (ToF-PET) requires further developments to achieve a Coincidence Time Resolution (CTR) 10ps, this enabling real time reconstruction and vivo molecular examination. most recent state-of-the-art ToF-PET reach 200 ps CTR. Lowering value will require cross-optimization scintillator crystal, electronics at same time. three elements optimization key boost resolution complete system. aim work provide simulation framework that enables system taking into consideration photon physics interaction response (size, dead area, capacitance) readout behavior (input impedance, noise, bandwidth). This has allowed us study new promising approach helps reducing CTR parameter by segmenting large area SiPM “ m ” smaller SiPMs then, summing signals recover all signal spread along these sensors. A 15% improvement on expected 4 mm × single 9 sensors 1.3 with respect case where no segmentation applied. • Monte Carlo capable simulate both parts, detector. Application-Specific Integrated Circuit design optimized for high resolution. towards 10 Resolution. implies better timing.