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Abstract: An analog hadron calorimeter AHCAL prototype of 5.3 nuclear interactionlengths thickness has been constructed by members of the CALICE Collaboration.The AHCAL prototype consists of a 38-layer sandwich structure of steel platesand highly-segmented scintillator tiles that are read out bywavelength-shifting fibers coupled to SiPMs. The signal is amplified and shapedwith a custom-designed ASIC. A calibration-monitoring system based on LED lightwas developed to monitor the SiPM gain and to measure the full SiPM responsecurve in order to correct for non-linearity. Ultimately, the physics goals arethe study of hadron shower shapes and testing the concept of particle flow. Thetechnical goal consists of measuring the performance and reliability of 7608SiPMs. The AHCAL was commissioned in test beams at DESY and CERN. The entireprototype was completed in 2007 and recorded hadron showers, electron showersand muons at different energies and incident angles in test beams at CERN andFermilab.



Autor: C. Adloff, Y. Karyotakis, J. Repond, A. Brandt, H. Brown, K. De, C. Medina, J. Smith, J. Li, M. Sosebee, A. White, J. Yu, T. Buan

Fuente: https://arxiv.org/







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