The Accelerator Neutrino Neutron Interaction Experiment, abbreviated as ANNIE, is a proposed water Cherenkov detector experiment designed to examine the nature of neutrino interactions. This experiment will study phenomena like proton decay, and neutrino oscillations, by analyzing neutrino interactions in gadolinium-loaded water and measuring their neutron yield. Neutron Tagging plays an important role in background rejection from atmospheric neutrinos.[1] By implementing early prototypes of LAPPDs (Large Area Picosecond Photodetector), high precision timing is possible.