Radar echo method detects cosmic neutrinos, revealing properties like position and energy in ice.
The Radar Echo Telescope collaboration (RET) aims to detect the cosmic neutrino flux at the highest energies through the radar echo method. Radar is a detection technique that allows for determining the position, speed and direction of a macroscopic object using radio waves. In-ice neutrino interactions leave a dense ionisation trail that can be detected using radar. We will discuss the very rich phenomenology of the expected radar signal and its features, with a first application to reconstructing the neutrino properties such as vertex position, arrival direction and energy.
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Loonen et al. (2025) studied this question.
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