An integrated 256 channel TCSPC camera with sub-70ps single photon timing per channel

Abstract

Development of a novel Time Correlated Single Photon Counting system with 256 independent channels is presented. The system integrates a UV/VIS sensitive Microchannel Plate based Multi Anode Photomultiplier Tube having a 16 × 16 array of 1.656 mm pitch pixels with the TOFPET2 ASIC. Each pixel acts as an independent detector with < 70 ps RMS single photon timing and per pixel maximum photon rate of 480 KHz. Characterisations presented include the pixel response uniformity, pixel-to-pixel crosstalk and LiDAR demonstration of single photon depth resolution of < 3 cm.