Some possible interpretations from data of the CODALEMA experiment Available to Purchase

The purpose of the CODALEMA experiment, installed at the Nançay Radio Observatory (France), is to study the radio-detection of ultra-high-energy cosmic rays in the energy range of 10¹⁶ – 10¹⁸ eV. Distributed over an area of 0.25 km², the original device uses in coincidence an array of particle detectors and an array of short antennas, with a centralized acquisition. A new analysis of the energy-reconstruction from radio data is presented for this system, taking into account the geomagnetic effect. Since 2011, a new array of radio-detectors, consisting of 60 stand-alone and self-triggered stations, has been in deployment over an area of 1.5 km² around the original detection device. This new development leads to specific challenges in terms of recognition of cosmic rays or wave-front analysis.