The Radar Echo Telescope: Theory and Experiment

We explore a new tool in the ultra-high-energy neutrino detection toolkit: the radar echo method. Starting with the first confirmed observation of a radar echo detection from a high-energy particle cascade in dense media, detected in 2018 during experiment T576 at SLAC, we present a roadmap to take these lab-based experimental results into nature: The Radar Echo Telescope. This will be a first of its kind observatory to detect neutrinos with energies above 10 PeV.