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arXiv · 1409.1565

The artificial retina processor for track reconstruction at the LHC crossing rate

A. Abba·F. Bedeschi·M. Citterio·F. Caponio·A. Cusimano·A. Geraci·P. Marino·M. J. Morello·N. Neri·G. Punzi·A. Piucci·L. Ristori·F. Spinella·S. Stracka·D. Tonelli
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Abstract

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.

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A. Abba, F. Bedeschi, M. Citterio, F. Caponio, A. Cusimano, A. Geraci, P. Marino, M. J. Morello, N. Neri, G. Punzi, A. Piucci, L. Ristori, F. Spinella, S. Stracka, D. Tonelli. 2014-09-04. The artificial retina processor for track reconstruction at the LHC crossing rate. https://doi.org/10.1088/1748-0221/10/03/c03018

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