First showers seen by the AMIGA Muon Detector

F. SÁNCHEZ, B. WUNDHEILER; A. CANCIO, F. CONTRERAS, G. DE LA VEGA; L. DEL PERAL, A. ETCHEGOYEN, A. FERRERO, J. M. FIGUEIRA; U. FROHLICH, R. F. GAMARRA, B. GARCÍA, M. GÓMEZ BERISSO; N. GONZÁLEZ, M. JOSEBACHUILI, J. KLEINFELLER, Y. KOLOTAEV; A. LUCERO, M. MAUR, D. MELO, M. PLATINO; M. PONTZ, D. RAVIGNANI, A. SEDOSKI CROCE; I. SIDELNIK, F. SUAREZ, A. TAPIA CASANOVA, R. TCACIUC; M. VIDELA, O. WAINBERG, D. YELOS

Encuentro; Pierre Auger Internal GAP Note Nº 2012-120; 2012

We present in this note a first set of events recorded from June to August 2012 by the engineering hexagon of the AMIGA moun detector. Up to August 30th , 8423 T5 events were successfully acquired by surface infill stations and their 10 m^2 buried scintillator companions. Among these, 246 showers were simultaneously observed by fluorescence, surface, and muon detector systems generating the very first hybrid events of this kind. A preliminary estimation of muon detector signal at a reference distance of 450 m is analysed.