Speaker
Description
Eos is a 20-ton neutrino detector located on the University of California Berkeley campus. It is a hybrid technology demonstrator that utilizes Cherenkov and scintillation light simultaneously to detect particle interactions. Construction was finished in early 2024. It has a fiducial volume of four-ton, featuring 242 photomultiplier tubes, including ultra-fast PMTs and dichroicons for spectral sorting, and a novel liquid scintillator (LS) target. Commissioning is complete, and the detector is currently filled with water. Multiple sources have been deployed in the detector for calibrations before the injection of LS. The results of the multi-ton scale Eos detector will be valuable to extrapolate the performance to future multi-kiloton scale hybrid detectors, such as Theia. This contribution will give an overview of the Eos project, current status of data-taking, as well as its potential applications in the future.