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. By implementing early prototypes of LAPPDs (
Large Area Picosecond Photodetector), high precision timing is possible. The suggested location for ANNIE is the
Sci-BooNE hall on the
Booster Neutrino Beam associated with the
MiniBooNE experiment. The neutrino beam originates in Fermilab where The Booster delivers 8 GeV protons to a
beryllium target producing secondary
pions and
kaons. These secondary
mesons decay to produce a neutrino beam with an average energy of around 800 MeV. ANNIE will begin installation in the summer of 2015.