The AMIGA detector of the Pierre Auger Observatory: overview

THE PIERRE AUGER COLLABORATION (AUTOR 434 DE 474); M. TUEROS (COAUTOR)

Beijing

Conferencia; 32nd International Cosmic Ray Conference 2011; 2011

Institute of High Energy Physics, Chinese Academy of Sciences

The Pierre Auger Observatory is currently being enhanced with the AMIGA detector (Auger Muons and Infill for the Ground Array) to bring the energy threshold down to 1017 eV and to enable the muon content of air showers to be determined. Its baseline layout consists of a 23.5 km2 infilled area within the Pierre Auger Observatory array deployed with synchronised pairs of water-Cherenkov surface stations and buried scintillator counters that sample simultaneously the particles of air showers at ground level and at a depth of 2.3 m respectively. At present, both detectors are placed on a triangular grid of 750 m, half the spacing of the main array. In this work we present the status of AMIGA, the performance of the surface array and the analysis of the first data of the scintillator detectors.