A Zemax/Matlab Monte Carlo (MC) simulator of a gamma detector module for PET applications is presented. The simulator models the optical arrangement and the photodetector based on CMOS Single-Photon Avalanche Diodes (SPADs). The simulator serves as a tool for optimization of the detector configuration, as it allows the designers to evaluate different sensor configurations and find the one that maximizes the signal-to-noise ratio (SNR). Three sensor configurations have been tested, employing SPADs with a diameter of 8 µm, 16 µm and 32 µm. Results show that 16 um-wide devices lead to the best trade-off between fill factor and noise.
Toward the development of a fully CMOS Single-Photon Detector for PET systems: a Montecarlo simulator as an optimization tool to support the sensor design
Gasparini, Leonardo;Huf Campos Braga, Leo;Stoppa, David;
2012
Abstract
A Zemax/Matlab Monte Carlo (MC) simulator of a gamma detector module for PET applications is presented. The simulator models the optical arrangement and the photodetector based on CMOS Single-Photon Avalanche Diodes (SPADs). The simulator serves as a tool for optimization of the detector configuration, as it allows the designers to evaluate different sensor configurations and find the one that maximizes the signal-to-noise ratio (SNR). Three sensor configurations have been tested, employing SPADs with a diameter of 8 µm, 16 µm and 32 µm. Results show that 16 um-wide devices lead to the best trade-off between fill factor and noise.File in questo prodotto:
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