A receiver system for the TileCal muon signals

The muon signals of TileCal, the central hadronic calorimeter of ATLAS, have successfully been used to trigger on cosmic rays. These muon signals provided by the trigger tower adder system are currently not used by ATLAS level-one muon trigger, as they have been foreseen for a near-future upgrade. Studies showed that the signal-to-noise ratio increases if muon signals from the same cell of the last TileCal segmentation layer are summed up together. This work presents a receiver system design for the TileCal muon signals, which is based on the analog sum of both readout signals of the last TileCal detection layer. The receiver system interfaces to ATLAS level-one trigger system aiming at improving overall muon detection.