Author/Authors :
Raffaele Adinolfi Falcone، نويسنده , , R. and Aglietta، نويسنده , , M. and Alessandro، نويسنده , , B. and Antonioli، نويسنده , , P. and Arneodo، نويسنده , , F. and Bergamasco، نويسنده , , L. and Bertaina، نويسنده , , M. and Bertoni، نويسنده , , R. and Campos Fauth، نويسنده , , A. and Castagnoli، نويسنده , , C. and Castellina، نويسنده , , A. and Chiavassa، نويسنده , , A. and Cini Castagnoli، نويسنده , , G. and DʹEttor، نويسنده ,
Abstract :
We describe and discuss the operation, calibration and stability of the EAS-TOP calorimeter (Campo Imperatore, National Gran Sasso Laboratories), a large area hadron and muon detector devoted to cosmic-ray physics. It consists of iron slabs (for a total thickness of 818 g cm−2) and Iarocci tubes as sensitive layers, operating in the streamer mode and the “quasi proportional” regime. Using a model describing the operation of the “quasi proportional” chambers, we derive a calibration curve in the energy range 50–5000 GeV, whose reliability has been indirectly checked through on-site measurements, by means of an accelerator beam run (up to≃600–700 GeV) and by comparing the model predictions on hadron shower transition curves with the data.
Keywords :
Extensive Air Shower , hadrons , Calorimeter , Cosmic ray detectors
