Undergraduate Research Projects on Eos Hybrid Neutrino Detector

Eos is a hybrid neutrino detector currently located on the surface of the UC Berkeley campus. The target is a 20-tonne water tank constructed of an inner acrylic vessel containing Water Based Liquid Scintillator (WbLS) surrounded by 240+ fast photomultiplier tubes (PMTs) and 12 dichroicons. A dichroicon is an ultrafast timing PMT with red and blue light filters that allow for spectral sorting to distinguish Cherenkov and scintillation photons from a single event. This technology offers better background rejection and sensitivity to a broad range of neutrino energies. The detector is scheduled to complete its construction in early 2024, with surface science runs scheduled to begin in mid-2024. The goal of the science runs is to characterize the hybrid detection technology with varying concentrations of water-based liquid scintillator using cosmic ray muons, light injection, beta, gamma, and neutron sources on the surface. As an undergraduate at Cal State Stanislaus and part of the Eos collaboration, I will present my work on Eos's Slow Control System, the Muon Veto System, and my participation in the construction and future analysis plans of the detector in this poster presentation.