https://doi.org/10.1140/epjc/s10052-023-12158-7
Regular Article - Experimental Physics
Gpu-based optical photon simulation for the LHCb RICH 1 detector
1
School of Physics and Astronomy, University of Manchester, M13 9PL, Manchester, UK
2
Rutherford Appleton Laboratory, Harwell Campus, OX110QX, Didcot, UK
3
Southampton University, Southampton, UK
Received:
24
July
2023
Accepted:
17
October
2023
Published online:
14
November
2023
We present the investigation of the use of Opticks, a GPU-accelerated optical photon interface with the LHCb detector simulation, to improve computation time of optical photon propagation. The hybrid workflow, combining the particle simulation package Geant4 and Opticks, offloads optical photon propagation to GPUs, thereby accelerating the overall simulation process. The consistency of the results obtained from Geant4 and Opticks simulations is verified with a simplified LHCb RICH1 detector geometry, demonstrating the feasibility of the proposed approach. In addition, the ongoing transition to the NVIDIA OptiX 7 API and re-structuring of Opticks code is discussed within the context of HEP simulation workflows, with caveats explored.
© The Author(s) 2023
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