Direction Reconstruction for the Radar Echo Telescope for Neutrinos (RET-N)

The Radar Echo Telescope for Neutrinos (RET-N) is a proposed experiment to detect neutrinos with energies above a few PeV utilizing the radar echo method in Antarctic ice. RET-N will consist of a radio transmitter and an array of receivers, aiming to detect the ionization trail from a ultra-high-energy neutrino interaction in-ice via active radar sounding. A powerful variable for direction reconstruction is the frequency content of the received signal, which changes based on event geometry. This frequency content is dependent on the angles between the cascade momentum direction and array geometry. In this talk, we present a simulation-based reconstruction method utilizing image recognition software to search time-frequency plots for radar echoes. An initial estimate of directional resolution will be reported. This method will be tested in the pathfinder experiment for RET-N, the Radar Echo Telescope for Cosmic Rays (RET-CR).