A macroscopic model of radar detection for the Radar Echo Telescope

The Radar Echo Telescope Collaboration

Research output: Contribution to journalConference articlepeer-review

Abstract

We introduce a new macroscopic model to simulate in-ice radar detection of high-energy particle cascades in dense media. High energy cosmic ray showers impacting a high altitude ice sheet, or cosmic neutrinos interacting in the ice produce a high-energy particle cascade, which leaves a short-lived plasma trail composed of ionized ice electrons. Unlike direct radio detection methods, the RET experiment aims to use radar technique to detect the particle cascade via the reflection of radio waves off this plasma. The new semi-analytical description presented in this work is based on well-known parametrizations of the cascade-s charge distribution and uses first-principles derivations for the estimated radar cross section of a full cascade scatter. The model includes all the known relevant physics that will affect the radar signal, such as the free charge collisional damping, electron lifetime, and relativistic effects due to the cascade propagation.

Original languageEnglish (US)
Article number017
JournalProceedings of Science
Volume424
StatePublished - Oct 25 2023
Event9th International Workshop on Acoustic and Radio EeV Neutrino Detection Activities, ARENA 2022 - Santiago de Compostela, Spain
Duration: Jun 7 2022Jun 10 2022

All Science Journal Classification (ASJC) codes

  • General

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