Abstract

Large Area Picosecond Photo-Detectors (LAPPDs) are next-generation photosensors based on microchannel plate technology. LAPPDs are imaging photosensors capable of resolving individual photons with sub-centimetre spatial resolutions and timing resolutions of order 10 picoseconds. Following a decade of R&D, the first commercial manufacture of LAPPDs began in 2017. The Accelerator Neutrino-Nucleus Interaction Experiment (ANNIE) is currently deploying LAPPDs for the first time in a particle physics experiment, where they will be used to make precision neutrino interaction measurements in the Fermilab Booster Neutrino Beam. Several LAPPDs have also been shipped to Fermilab, where they will be used for R&D purposes such as Cherenkov / scintillation separation in the BOLEYN testbed at the Boulby Underground Laboratory.