AMIGA, Auger Muons and Infill for the Ground Array of the Pierre Auger Observatory

M. PLATINO FOR THE PIERRE AUGER COLLABORATION , B. WUNDHEILER

Lodz, Polonia

Congreso; International Cosmic Ray Conference 2009; 2009

University of Łódź

AMIGA consists of 85 detector pairs each one composed of a surface water-Cherenkov detector and a buried muon counter. Each muon counter has an area of 30 m2 and is made of scintillator strips with doped opticalfibers glued to them, which guide the light to 64 pixel photomultiplier tubes. The detector pairs are arranged at 433 and 750 m array spacings in order to perform a detailed study of the 10**17 eV to 10**19 eV spectrum region. Design parameters and performance requisites are outlined. Construction of the first muon detectors, associated software and hardware, and the results of laboratory tests are described. Some preliminary results on the performance of the 750 m array of surface detectors is presented.