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FELIX: a PCIe based high-throughput approach for interfacing front-end and trigger electronics in the ATLAS Upgrade framework

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Published 13 December 2016 • © CERN 2016
, , Topical Workshop on Electronics for Particle Physics (TWEPP2016) Citation J. Anderson et al 2016 JINST 11 C12023 DOI 10.1088/1748-0221/11/12/C12023

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Author affiliations

1 Argonne National Laborator, 9700 South Cass Avenue B109, Lemont, IL 60439, U.S.A.

2 Brookhaven National Laboratory, P.O. Box 5000, Upton, NY 11973-5000, U.S.A.

3 University of California, Irvine, Irvine, CA 92697, U.S.A.

4 CERN, CH-1211 Geneva 23, Switzerland

5 Royal Holloway, University of London, Egham Hill, Egham TW20 0EX, United Kingdom

6 Nikhef National Institute for Subatomic Physics / University of Amsterdam, Science Park 105, 1098 XG Amsterdam, Netherlands

7 Department of Computer Science, University of Paderborn, Pohlweg 47, 33098 Paderborn, Germany

8 Department of Particle Physics, The Weizmann Institute of Science, Rehovot 76100, Israel

9 Radboud University Nijmegen, Comeniuslaan 4, 6525 HP Nijmegen, Netherlands

Dates

  1. Received 30 October 2016
  2. Accepted 29 November 2016
  3. Published

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1748-0221/11/12/C12023

Abstract

The ATLAS Phase-I upgrade (2019) requires a Trigger and Data Acquisition (TDAQ) system able to trigger and record data from up to three times the nominal LHC instantaneous luminosity. The Front-End LInk eXchange (FELIX) system provides an infrastructure to achieve this in a scalable, detector agnostic and easily upgradeable way. It is a PC-based gateway, interfacing custom radiation tolerant optical links from front-end electronics, via PCIe Gen3 cards, to a commodity switched Ethernet or InfiniBand network. FELIX enables reducing custom electronics in favour of software running on commercial servers. The FELIX system, the design of the PCIe prototype card and the integration test results are presented in this paper.

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10.1088/1748-0221/11/12/C12023