Investigation of Electronic Signal Processing Chains for a Prototype TOF-PET System With 100-ps Coincidence Time Resolution.
Investigation of Electronic Signal Processing Chains for a Prototype TOF-PET System With 100-ps Coincidence Time Resolution.
复制标题
符合时间分辨率为100 ps的TOF-PET原型系统的电子信号处理链研究。
DOI：
10.1109/trpms.2021.3124756
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发表时间：
2022-07
影响因子：
4.4
通讯作者：
Levin, Craig S.
中科院分区：
文献类型：
--
作者：
Pourashraf, Shirin;Gonzalez-Montoro, Andrea;Lee, Min Sun;Cates, Joshua W.;Won, Jun Yeon;Lee, Jae Sung;Levin, Craig S.
关键词：
我们已经评估了四种不同的混合信号前端电子读出配置的CTR性能，目标是实现100皮秒（ps）的符合时间分辨率（CTR）。所提出的TOF-PET探测器元件基于两个3 × 3 × 10 mm 3“快速LGSO”晶体段，侧面耦合到3 × 3 mm 2硅光电倍增管（SiPM）线性阵列，形成总晶体长度为20 mm。3）RF放大器、平衡-不平衡变换器Transformer和ASIC的组合;以及4）平衡-不平衡变换器Transformer和ASIC的组合。利用两个3 × 3 × 10 mm 3的快LGSO晶体与三个SiPM线性阵列耦合，结合低抖动的现场可编程门阵列（FPGA）时间数字转换器（TDC），实验获得了每种读出配置的符合数据。在评估三种读出方案的定时性能之后，对于配置（3）实现了99.4 ± 1.9ps FWHM的最佳CTR值，这比使用配置（1）和（2）实现的结果好20 ps以上。
We have evaluated CTR performance of four different mixed-signal front-end electronic readout configurations with the goal to achieve 100 picoseconds (ps) coincidence time resolution (CTR). The proposed TOF-PET detector elements are based on two 3 × 3 × 10 mm3 “fast LGSO” crystal segments, side-coupled to linear arrays of 3 × 3 mm2 silicon photomultipliers (SiPMs), to form a total crystal length of 20 mm. We studied multiple configurations and components for the front-end readout: 1) high speed radio frequency (RF) amplifiers; 2) an ASIC-based discriminator; 3) combination of RF amplifier, balun transformer, and discriminator ASIC; and 4) combination of balun transformer, and discriminator ASIC. Using two 3 × 3 × 10 mm3 fast LGSO crystals side coupled to a linear array of three SiPMs, coincidence data were experimentally acquired for each readout configuration in combination with a low jitter field programmable gate array (FPGA)-based time to digital converter (TDC). After evaluating timing performance of the three readout schemes, the best CTR value of 99.4 ± 1.9 ps FWHM was achieved for configuration (3), which is more than 20 ps better than the results achieved using configurations (1) and (2).
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影响因子：
3.5
作者：
Cates, Joshua W.;Levin, Craig S.
通讯作者：
Levin, Craig S.
影响因子：
1.4
作者：
Gonzalez-Montoro A;Pourashraf S;Lee MS;Cates JW;Levin CS
通讯作者：
Levin CS
DOI：
10.1016/j.nima.2013.11.025
发表时间：
2014-02-11
影响因子：
1.4
作者：
Gundacker, S.;Knapitsch, A.;Lecoq, P.
通讯作者：
Lecoq, P.
DOI：
10.1109/trpms.2018.2870927
发表时间：
2018-11-01
影响因子：
4.4
作者：
Manuel Cela, Jose;Freixas, Lluis;Badia, David
通讯作者：
Badia, David
影响因子：
9.3
作者：
Hsu, David F. C.;Ilan, Ezgi;Levin, Craig S.
通讯作者：
Levin, Craig S.