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Title: A new ATLAS muon CSC readout system with system on chip technology on ATCA platform

The ATLAS muon Cathode Strip Chamber (CSC) backend readout system has been upgraded during the LHC 2013-2015 shutdown to be able to handle the higher Level-1 trigger rate of 100 kHz and the higher occupancy at Run-2 luminosity. The readout design is based on the Reconfigurable Cluster Element (RCE) concept for high bandwidth generic DAQ implemented on the Advanced Telecommunication Computing Architecture (ATCA) platform. The RCE design is based on the new System on Chip XILINX ZYNQ series with a processor-centric architecture with ARM processor embedded in FPGA fabric and high speed I/O resources. Together with auxiliary memories, all of these components form a versatile DAQ building block that can host applications tapping into both software and firmware resources. The Cluster on Board (COB) ATCA carrier hosts RCE mezzanines and an embedded Fulcrum network switch to form an online DAQ processing cluster. More compact firmware solutions on the ZYNQ for high speed input and output fiberoptic links and TTC allowed the full system of 320 input links from the 32 chambers to be processed by 6 COBs in one ATCA shelf. The full system was installed in September 2014. In conclusion, we will present the RCE/COB design concept, the firmwaremore » and software processing architecture, and the experience from the intense commissioning for LHC Run 2.« less
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  1. SLAC National Accelerator Lab., Stanford, CA (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States); Univ. of Athens (Greece)
  4. Chinese Univ. of Hong Kong, Hong Kong (China)
  5. Univ. of California, Irvine, CA (United States)
  6. Brookhaven National Lab. (BNL), Upton, NY (United States); National Technical Univ. of Athens, Athens (Greece)
  7. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  8. Johannes Gutenberg Univ., Mainz (Germany)
Publication Date:
Report Number(s):
Journal ID: ISSN 1748-0221
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Journal of Instrumentation
Additional Journal Information:
Journal Volume: 11; Journal Issue: 01; Journal ID: ISSN 1748-0221
Institute of Physics (IOP)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; electronic detector readout concepts (gas, liquid); modular electronics; data acquisition concepts
OSTI Identifier: