Abstract
For the Phase-I luminosity upgrade of the LHC a higher granularity trigger readout of the ATLAS Liquid Argon (LAr) Calorimeters is foreseen to enhance the trigger feature extraction and background rejection. The new readout system digitizes the detector signals, grouped into 34000 so-called Super Cells, with 12-bit precision at 40 MHz and transfers the data on optical links to the digital processing system, which computes the Super Cell transverse energies. In this paper, development and test results of the new readout system are presented.
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