Construction and commissioning of the CALICE analog hadron calorimeter prototype
2010
An analog
hadroncalorimeter (AHCAL) prototype of 5.3
nuclear interaction lengthsthickness has been constructed by members of the
CALICECollaboration. The AHCAL prototype consists of a 38-layer sandwich structure of steel plates and highly-segmented scintillator tiles that are read out by wavelength-shifting fibers coupled to SiPMs. The signal is amplified and shaped with a custom-designed ASIC. A calibration/monitoring system based on LED light was developed to monitor the SiPM gain and to measure the full SiPM response curve in order to correct for non-linearity. Ultimately, the physics goals are the study of
hadron
showershapes and testing the concept of particle flow. The technical goal consists of measuring the performance and reliability of 7608 SiPMs. The AHCAL was commissioned in test beams at
DESYand CERN. The entire prototype was completed in 2007 and recorded
hadron
showers, electron
showersand muons at different energies and incident angles in test beams at CERN and
Fermilab.
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