Using Laser-Based Optical Distribution to Achieve First Subpicosecond Multimodule Synchronization in Positron Emission Tomography System. - Weiyan Pan; Yingjie Wang; Liang Xie; Congbiao Lei; Jiale Cai; Xianchao Huang; Zhiming Zhang; Long Wei (IEEE Trans. Instrum. Meas., 2025)