The new readout system of the NA62 LKr calorimeter

The NA62 experiment at CERN SPS (Super Proton Synchrotron) accelerator aims at studying Kaon decays with high precision. The high resolution Liquid Krypton (LKr) calorimeter, built for the NA48 experiment, is a crucial part of the photon-veto system; to cope with the demanding NA62 requirements, its back-end electronics had to be completely renewed. The new readout system is based on the Calorimeter REAdout Module (CREAM) , a 6U VME board whose design and production was sub-contracted to CAEN , with CERN NA62 group continuously supervising the development and production phase. The first version of the board was delivered by the manufacturer in March 2013 and, as of June 2014, the full board production is ongoing. In addition to describing the CREAM board, all aspects of the new LKr readout system, including its integration within the NA62 TDAQ scheme, will be treated.