Andrea Triossi

Fellow at CERN. Design and developing of custom electronics for CMS experiment

Short Bio

Fellow at CERN, the European Organization for Nuclear Research.
I obtained my master’s degree in Physics at the University of Padua. I completed then my PhD in Computer Science at the Ca’Foscari University of Venice working on the investigation of new methodologies allowing the hardware synthesis starting from high level languages like CHR. I worked on the readout and trigger system of several particle and nuclear experiments like AGATA, NEDA and WArP. In the CMS collaboration I am working on the design and commissioning of electronic boards for the upgrade of the Drift Tube sub-detector. In particular I am in charge of the TwinMux production.

Current Project

The CMS muon trigger is undergoing considerable enhancements during LHC run-2, which imply the redesign of the whole electronics chain. TwinMux is a new uTCA board based on a Virtex-7 FPGA that will merge, arrange and fan-out the slow optical links from the muon chambers in faster (10 Gbps) links




Research Area

My primary research interest is in the area of reconfigurable computing applied to Experimental Physics needs. Reconfigurable computing is intended to fill the gap between hardware and software, achieving potentially much higher latency related performance than software, while maintaining a higher level of flexibility than hardware. A processing device quickly responds to changing requirements, able to demonstrate a wide range of algorithms. Hardware on the other hand has a more permanent nature, intended at performing the same task many times in a massively parallel way. The combination of low latency, high degree of parallelism and flexibility makes reconfigurable hardware architecture match the requirements typical of the trigger and read-out system of an experimental physics detector.

Selected Publications

  • X. Egea et al. A New Front-end High-resolution Sampling Board for the New-Generation Electronics of EXOGAM2 and NEDA detectors. IEEE Transactions on Nuclear Science, (2015), Volume 62, Issue 3, 1056-1062.
  • A. Triossi et al. A New Data Concentrator for the CMS Muon Barrel Track Finder - Phase I Upgrade. Proceedings of Science (2014), PoS(TIPP2014)412.
  • The CMS Collaboration. CMS Technical Design Report for the Level-1 Trigger Upgrade. CERN-LHCC-2013-011, CMS-TDR-012, ISBN 978-92-9083-390-1, 2013.
  • X. Egea et al. Design and test of a high-speed flash ADC mezzanine card for high-resolution and timing performance in nuclear structure experiments. IEEE Transactions on Nuclear Science, (2013), Volume 60, Issue 5, 3526-3531.
  • D. Barrientos et al. Multiple registers synchronization with a high-speed serial link using the Aurora protocol. IEEE Transactions on Nuclear Science, (2013), Volume 60, Issue 5, 3521-3525.
  • A. Triossi et al. A PCI Express Optical Link Based on Low-Cost Transceivers Qualified for Radiation Hardness. Journal of Instrumentation (2013) Volume 8, C02011.
  • M. Bellato at al. Sub-nanosecond clock synchronization and trigger management in the nuclear physics experiment AGATA, Journal of Instrumentation (2013) Volume 8, P07003.
  • A. Triossi, S.Orlando, A.Raffaetà, T. Frühwirth. Compiling CHR to parallel hardware. Principles and Practice of Declarative Programming, ACM (2012), 173-184.
  • A. Triossi, S.Orlando, F. Raiser, T. Frühwirth. Boosting CHR through Hardware Acceleration. Proceedings of 8th International Workshop on Constraint Handling Rules (2011).
  • A. Triossi, S.Orlando, F. Raiser, T. Frühwirth. Constraint-Based Hardware Synthesis. Proceedings of 24th Workshop on (Constraint) Logic Programming (2010).
  • M. Bellato et al. Global Trigger and Readout System for the AGATA experiment. IEEE Transactions on Nuclear Science Vol. 55, Issue 1, Part 1 (2008) 91-98.
  • M. Bellato et al. Remoting Field Bus Control by Means of a PCI Express-based Optical Serial Link. Nuclear Instruments and Methods in Physics Research A Vol. 570, Issue 3, (2007) 518-524.
And more than 90 papers in the CMS, AGATA, NEDA and WArP collaborations. For an updated list of publications, please refer to my Google Scholar profile



bld. 512-1-006
Route de Meyrin
CH-1211 Genève 23
triossi at
Tel. +41 22 7670493