Hadron calorimeter with MAPD readout in the NA61/SHINE experiment
  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. 
A. Ivashkin, F. Akhmadov, R. Asfandiyarov, A. Bravar, A. Blondel, W.   Dominik, Z. Fodor, M. Gazdzicki, M. Golubeva, F. Gube...
physics.ins-det hep-ex