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Impact of Analog IC Impairments in SiPM Interface Electronics
Samrat Dey1, Thomas K Lewellen2, Robert S Miyaoka2
1Electrical Engineering Department, University of Washington, Seattle, WA 98195-2500, USA, telephone: (206)685-1600.
IEEE Transactions on Nuclear Science
|May 13, 2014
Summary
This study models analog non-idealities in silicon photomultiplier (SiPM) front-end electronics for Positron Emission Tomography (PET) scanners. Simulations reveal impacts on noise, linearity, and bandwidth, crucial for SiPM-PET system performance.
Area of Science:
- Medical Imaging
- Solid-State Physics
- Electronics Engineering
Background:
- Silicon Photomultiplier (SiPM) devices offer potential advancements in Positron Emission Tomography (PET) systems, including improved resolution and reduced power consumption.
- Previous work established board-level readout electronics for SiPM arrays using row/column summation.
- A monolithic CMOS chip based on this architecture is under development, necessitating a deeper understanding of electronic non-idealities.
Purpose of the Study:
- To investigate and model the impact of analog non-idealities in front-end electronics on SiPM-based PET scanners.
- To analyze the effects of noise, linearity, and signal bandwidth limitations on PET system performance.
- To provide a foundation for optimizing SiPM-PET readout electronics through simulation.
Main Methods:
- Utilized Matlab as a simulation platform to model analog impairments.
- Employed measured SiPM pulses as input signals for the simulations.
- Focused on key electronic parameters: noise, linearity, and signal bandwidth.
Main Results:
- Quantified the influence of analog non-idealities on the performance of SiPM-based PET readout electronics.
- Simulated results provide insights into the expected behavior of the front-end electronics under various non-ideal conditions.
- Established a simulation framework for evaluating the impact of electronic impairments on PET imaging.
Conclusions:
- Analog non-idealities in front-end electronics significantly affect SiPM-based PET scanner performance.
- Accurate modeling is essential for designing robust and high-performance SiPM-PET systems.
- The simulation approach provides a valuable tool for optimizing future PET detector electronics.
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