Measuring the accuracy of the AMIGA muon counters at the Pierre Auger Observatory

THE PIERRE AUGER COLLABORATION.; S. J. SCIUTTO

Conferencia; 33rd International Cosmic Ray Conference; 2013

The AMIGA enhancement of the Auger Surface Detector consists of a 23.5 km2 infilled area wherethe shower particles are sampled by water Cherenkov detectors accompanied by 30 m2 of scintillator counters,buried 2.3 m underground.The accuracy of the muon counting obtained by the buried detectors is a basic elementin the reconstruction procedure, and must be determined using experimental air shower data. To perform thismeasurement, twin muon counters (30+30 m2) have been deployed in two infill locations; their mutual distancebeing about 10 m, they sample nearly the same region of the air shower. In this paper we discuss the basicproperties of the modules as measured during the construction phase and the expected counting performances ofthe twin counters installed at the experimental site.