会议论文详细信息
16th International Conference on Positron Annihilation
A TOF-PET Detector based on Quadrant-Sharing PMTs and Optimized Leading-edge Timing Method
Wang, Yingjie^1,2 ; Liu, Junhui^1,2 ; Li, Daowu^1,2 ; Zhang, Tianbao^1,2 ; Zhang, Zhiming^1,2 ; Cao, Xingzhong^1,2 ; Wang, Baoyi^1,2 ; Wei, Long^1,2,3
Key Laboratory of Nuclear Analysis Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China^1
Beijing Engineering Research Center of Radiographic Techniques and Equipment, Beijing 100049, China^2
19B Yuquan Lu, Shijingshan District, Beijing, China^3
关键词: Constant fraction discriminators;    Leading edge timing methods;    Optimized parameter;    Single channels;    Time of flight;    Tof pets;   
Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/443/1/012085/pdf
DOI  :  10.1088/1742-6596/443/1/012085
来源: IOP
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【 摘 要 】

A time-of-flight positron emission tomography (TOF-PET) detector was developed based on a 6×9 LYSO array and four single channel photomultipliers (Hamamatsu R9800). Leading-edge timing circuit with optimized parameter was used instead of the constant fraction discriminator. The results showed that all 54 elements in the flood histogram could be identified clearly. The average coincidence resolving time was 402 ps FWHM.

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