PoS - Proceedings of Science
Volume 470 - 10th International Workshop on Acoustic and Radio EeV Neutrino Detection Activities (ARENA2024) - Dense-media shower radio experiments
Deployment and status of the Radar Echo Telescope
D. Frikken* and  On behalf of the Radar Echo Telescope Collaboration
Full text: pdf
Published on: November 07, 2024
Abstract
The Radar Echo Telescope for Cosmic Rays (RET-CR), a pathfinder experiment for a future
ultrahigh energy neutrino detector, is a recently deployed experiment designed to detect the
ionization trail from an in-ice cosmic ray shower via active radar sounding. In high-elevation
ice sheets, a high-energy cosmic ray (E >10 PeV) at shallow zenith angle deposits more than 10
percent of its primary energy into the ice sheet producing a cascade with energy densities several
orders of magnitude higher than in air. This dense in-ice cascade can then be interrogated with
an in-ice radar system. RET-CR consists of a phased-array transmitter and an array of receiving
antennas triggered by scintillator panels on the surface with a surface-based radio array to aid in
cosmic ray reconstruction. RET-CR is a pathfinder experiment, which aims to test the radar echo
method for the Radar Echo Telescope for Neutrinos (RET-N). RET-CR was deployed at Summit
Station, Greenland, running from May to August 2024.
DOI: https://doi.org/10.22323/1.470.0012
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