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A demonstrator for a real-time AI-FPGA-based triggering system for sPHENIX at RHIC

Technical Report ·
DOI:https://doi.org/10.2172/2377314· OSTI ID:2377314
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  1. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
  2. Rensselaer Polytechnic Inst., Troy, NY (United States)
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  4. Central China Normal Univ., Wuhan (China)
  5. Univ. of North Texas, Denton, TX (United States)
  6. Brookhaven National Laboratory (BNL), Upton, NY (United States)
  7. Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
  8. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
  9. Univ. of Michigan, Ann Arbor, MI (United States)
  10. New Jersey Institute of Technology (NJIT), Newark, NJ (United States)
  11. Georgia Institute of Technology, Atlanta, GA (United States)
+ Show Author Affiliations

The RHIC interaction rate at sPHENIX will reach around 3 MHz in pp collisions and requires the detector readout to reject events by a factor of over 200 to fit the DAQ bandwidth of 15 kHz. Some critical measurements, such as heavy flavor production in pp collisions, often require the analysis of particles produced at low momentum. This prohibits adopting the traditional approach, where data rates are reduced through triggering on rare high momentum probes. We explore a new approach based on real-time AI technology, adopt an FPGA-based implementation using a custom designed FELIX-712 board with the Xilinx Kintex Ultrascale FPGA, and deploy the system in the detector readout electronics loop for real-time trigger decision.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program
DOE Contract Number:
89233218CNA000001
OSTI ID:
2377314
Report Number(s):
LA-UR--23-32546
Country of Publication:
United States
Language:
English

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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