Speaker
Description
Eos is a multi-ton-scale demonstrator for future hybrid neutrino detectors that leverages both Cherenkov and scintillation light. Several novel technologies are being explored at this testbed, including Water-based Liquid Scintillator (WbLS). In this presentation, I will discuss the status of external neutron and γ background reconstruction in the Eos detector utilizing a Plutonium Beryllium (PuBe) calibration source. The PuBe source provides a constant neutron rate at 1.7 MHz, accompanied by a 4.4 MeV γ-ray for a percentage of the neutron emissions, dependent on the source construction. With a high activity of 37 GBq, the PuBe source can be deployed externally. Therefore, the PuBe source can be used to demonstrate Eos’ capacity to tag external backgrounds and validate our simulated detector geometry. Reconstruction of γ and neutron sources pose a greater challenge due to the multi scatter nature of these events, but we can still test the performance of various vertex and position reconstruction algorithms optimized for water and WbLS. This presentation will discuss the performance of our current tools and outline the degree of data/simulation agreement for external background reconstruction using the PuBe source.