A. Ivashkin, F. Akhmadov, R. Asfandiyarov, A. Bravar, A. Blondel, W. Dominik, Z. Fodor, M. Gazdzicki, M. Golubeva, F. Guber, A. Hasler, A. Korzenev, S. Kuleshov, A. Kurepin, A. Laszlo, V. Marin, Yu. Musienko, O. Petukhov, D. Röhrich, A. Sadovsky, Z. Sadygov, T. Tolyhi, F. Zerrouk
The modular hadron calorimeter with micro-pixel avalanche photodiodes readout for the NA61/SHINE experiment at the CERN SPS is presented. The calorimeter consists of 44 independent modules with lead-scintillator sandwich structure. The light from the scintillator tiles is captured by and transported with WLS-fibers embedded in scintillator grooves. The construction provides a longitudinal segmentation of the module in 10 sections with independent MAPD readout. MAPDs with pixel density of $~10^{4}$/mm$^2$ ensure good linearity of calorimeter response in a wide dynamical range. The performance of the calorimeter prototype in a beam test is reported.
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http://arxiv.org/abs/1205.4864
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