78197821 2024 066 11:50 1 6.01.01 We replaced the gate cable from control system and the signal cable to TC454 device  on Mar. 5, 2024.  
78197821 2022 346 11:00 1 5.01 The laser was replaced by a new one with 532nm wavelength, more than 2mJ/pulse energy, 2000Hz max frequency and less than 50ps pulse width main parameters. 
78197821 2022 304 15:00 1 6.01.01 The trigger voltage of TC454 device is adjusted from -0.366 voltage to -2.93 voltage. 
78197821 2022 088 10:00 1 6.01.01 The receive optical path was modified between the C-SPAD and the receive telescope.