The artificial retina processor for track reconstruction at the LHC   crossing rate
  We present results of an R&D study for a specialized processor capable of precisely reconstructing, in pixel detectors, hundreds of charged-particle tracks from high-energy collisions at 40 MHz rate. We apply a highly parallel pattern-recognition algorithm, inspired by studies of the processing of visual images by the brain as it happens in nature, and describe in detail an efficient hardware implementation in high-speed, high-bandwidth FPGA devices. This is the first detailed demonstration of reconstruction of offline-quality tracks at 40 MHz and makes the device suitable for processing Large Hadron Collider events at the full crossing frequency. 
A. Abba, F. Bedeschi, M. Citterio, F. Caponio, A. Cusimano, A. Geraci,   P. Marino, M.J. Morello, N. Neri, G. Punzi, A. Piuc...
physics.ins-det