Zhixiang Zhao, Stanford U.: "High-Performance TOF-PET Electronics: Utilizing Commercial Discrete Components and FPGA "

Friday 2 Feb 2024, 10:00 → 11:00 US/Pacific

zoom: lbnl.zoom.us/j/91350559795
 

Abstract: 

It is challenging to read out the tens of thousands of signal channels in a TOF-PET system based on SiPMs. To reduce the complexity and meanwhile maintain high performance, we have developed novel PET electronic solutions using readily available discrete components and general-purpose Field Programmable Gate Array (FPGA) chips. Our approach includes the energy measurement scheme based on 1-bit Sigma-Delta circuits, the timing signal multiplexing scheme using a summing circuit and RF amplifiers, and the data processing and system topology scheme based on FPGA. These methods enable precise one-to-one energy measurements, sub-millimeter photon positioning accuracy, near 100 ps timing performance, and flexible system scalability. Our approach has been successfully applied in various PET prototype systems, demonstrating its broad applicability and potential to enhance TOF-PET imaging.