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Testing Calorimeter with cosmic rays By: Matteo Pallocca (Liceo Scientifico A.Landi, Velletri) Agnese Capobianco (Liceo Scientifico E.Amaldi, Roma) Federica Forcesi (Liceo Scientifico Farnesina, Roma) Tutor: Marco Mirazita Technician : Walter Pesci. Stage objectives
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Testing Calorimeter with cosmic raysBy:Matteo Pallocca (Liceo Scientifico A.Landi, Velletri)Agnese Capobianco (Liceo Scientifico E.Amaldi, Roma)Federica Forcesi (Liceo Scientifico Farnesina, Roma)Tutor: Marco MirazitaTechnician: Walter Pesci
Stage objectives • Testing a lead/scintillator sampling calorimeter using cosmic muons. • Calculation of Voltage Curves and Calibration Line.
Our Detector PAD 1 CALORIMETER PMT PAD 2
Power Supply Discriminator Logic AND Delays QDC FAN IN/ FAN OUT
Example of a QDC spectrum Signal Peak, released by a muon Background
Conclusions • We set up an acquisition system to test a calorimeter using cosmic muons. • We calculated voltage curves for four different voltages. • We equalized the 4 central PMTs. • We calculated the calibration line of our calorimeter and verified its linear behavior.