A Design of FPGA Based Small Animal PET Real Time Digital Signal Processing and Correction Logic
Jiaming Lu, Lei Zhao, Peipei Deng, Bowen Li, Kairen Chen, Shubin Liu,, Qi An

TL;DR
This paper presents an FPGA-based digital signal processing system for small animal PET imaging that supports multiple modes, performs real-time corrections, and processes up to one million events per second.
Contribution
It introduces a high-efficiency, multi-mode FPGA digital logic design for small animal PET with integrated online correction functions and high data throughput.
Findings
Supports three online processing modes
Processes signals at 125 MHz with 1 million events/sec
Achieves expected performance in initial tests
Abstract
Small animal Positron Emission Tomography (PET) is dedicated to small animal imaging. Animals used in experiments, such as rats and monkeys, are often much smaller than human bodies, which requires higher position and energy precision of the PET imaging system. Besides, Flexibility, high efficiency are also the major demands of a practical PET system. These requires a high-quality analog front-end and a digital signal processing logic with high efficiency and compatibility of multiple data processing modes. The digital signal processing logic of the small animal PET system presented in this paper implements 32-channel signal processing in a single Xilinx Artix-7 family of Field-Programmable Gate Array (FPGA). The logic is designed to support three online modes which are regular package mode, flood map and energy spectrum histogram. Several functions are integrated, including…
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Taxonomy
TopicsMedical Imaging Techniques and Applications · Radiation Detection and Scintillator Technologies · Particle Detector Development and Performance
