The Radar Echo Telescope for Neutrinos: Contribution to ICRC 2023

The Radar Echo Telescope for Neutrinos (RET-N) is a next generation experiment to detect cosmic neutrinos with energies in the PeV to EeV energy range by utilizing the radar echo method in polar ice. RET-N will consist of a phased-array radio transmitter and an array of receivers, aiming to detect the ionization trail from an ultra-high-energy neutrino interaction in-ice via active radar sounding. The received signal is a function of the transmitted signal (including any modulation), array geometry, geometry of the reflection, and propagation effects. We present potential triggering methods, the properties of the expected radar signal, and how to use these properties to reconstruct the neutrino arrival direction and energy. These methods are being tested in the pathfinder experiment for RET-N, the Radar Echo Telescope for Cosmic Rays (RET-CR) currently deployed in Greenland.