The hadron calorimeter of EAS-TOP: operation, calibration and resolution
- R. A. Falcone
- M. Aglietta
- B. Alessandro
- P. Antonioli
- F. Arneodo
- L. Bergamasco
- M. Bertaina
- R. Bertoni
- A. C. Fauth
- C. Castagnoli
- A. Castellina
- A. Chiavassa
- G. C. Castagnoli
- B. D. Piazzoli
- G. D. Sciascio
- W. Fulgione
- P. Galeotti
- P. L. Ghia
- A. Giuliano
- M. Iacovacci
- G. Mannocchi
- C. Morello
- G. Navarra
- H. Nogima
- L. Riccati
- O. Saavedra
- E. Tatananni
- G. C. Trinchero
- P. Vallania
- S. Vernetto
- C. Vigorito
DOIAbstract
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 similar or equal to 600-700 GeV) and by comparing the model predictions on hadron shower transition cur...
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