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Silicon Photomultipliers(SiPM)

Silicon photomultipliers are solid-state single-photon-sensitive devices based on Single-photon avalanche diodes (SPAD) implemented on common silicon substrate. The dimension of each single SPAD can vary from 10 to 100 micrometres, with a density of up to 10,000 per square millimeter. 


SiPM for medical imaging are attractive candidates for the replacement of the conventional PMT in PET and SPECT imaging, since they provide high gain with low voltage and fast response, they are very compact and compatible with magnetic resonance setups. Nevertheless, there are still several challenges, for example, SiPM requires optimization for larger matrices, signal amplification and digitization.


Small Cell and Pitch 

High Cell Density and Fill Factor 

Large Dynamic Range and High PDE 

Fast Rise Time and Narrow Pulse Width 

Short Recovery Time and High Time Resolution 

Small Terminal Capacitance and Cost Effective


High Energy Physics 

Fluorescence Measurement 

Nuclear Medical Imaging (PET, SPECT, CT) 

Radiation Detection and Imaging 

Optical Spectroscope 

Other Low Level Light Detection