Performance of an Optical TPC Geant4 Simulation with Opticks GPU-Accelerated Photon Propagation
Instrumentation and Detectors
2025-11-20 v2 High Energy Physics - Experiment
Abstract
We investigate the performance of Opticks, a NVIDIA OptiX API 7.5 GPU-accelerated photon propagation tool compared with a single-threaded Geant4 simulation. We compare the simulations using an improved model of the NEXT-CRAB-0 gaseous time projection chamber. Performance results suggest that Opticks improves simulation speeds by between 58.47+/-0.02 and 181.39+/-0.28 times relative to a CPU-only Geant4 simulation and these results vary between different types of GPU and CPU. A detailed comparison shows that the number of detected photons, along with their times and wavelengths, are in good agreement between Opticks and Geant4.
Keywords
Cite
@article{arxiv.2502.13215,
title = {Performance of an Optical TPC Geant4 Simulation with Opticks GPU-Accelerated Photon Propagation},
author = {NEXT Collaboration and I. Parmaksiz and K. Mistry and E. Church and C. Adams and J. Asaadi and J. Baeza-Rubio and K. Bailey and N. Byrnes and B. J. P. Jones and I. A. Moya and K. E. Navarro and D. R. Nygren and P. Oyedele and L. Rogers and F. Samaniego and K. Stogsdill and H. Almazán and V. Álvarez and B. Aparicio and A. I. Aranburu and L. Arazi and I. J. Arnquist and F. Auria-Luna and S. Ayet and C. D. R. Azevedo and F. Ballester and M. del Barrio-Torregrosa and A. Bayo and J. M. Benlloch-Rodríguez and F. I. G. M. Borges and A. Brodolin and S. Cárcel and A. Castillo and L. Cid and C. A. N. Conde and T. Contreras and F. P. Cossío and R. Coupe and E. Dey and G. Díaz and C. Echevarria and M. Elorza and J. Escada and R. Esteve and R. Felkai and L. M. P. Fernandes and P. Ferrario and A. L. Ferreira and F. W. Foss and Z. Freixa and J. García-Barrena and J. J. Gómez-Cadenas and J. W. R. Grocott and R. Guenette and J. Hauptman and C. A. O. Henriques and J. A. Hernando Morata and P. Herrero-Gómez and V. Herrero and C. Hervés Carrete and Y. Ifergan and F. Kellerer and L. Larizgoitia and A. Larumbe and P. Lebrun and F. Lopez and N. López-March and R. Madigan and R. D. P. Mano and A. P. Marques and J. Martín-Albo and G. Martínez-Lema and M. Martínez-Vara and R. L. Miller and J. Molina-Canteras and F. Monrabal and C. M. B. Monteiro and F. J. Mora and P. Novella and A. Nuñez and E. Oblak and J. Palacio and B. Palmeiro and A. Para and A. Pazos and J. Pelegrin and M. Pérez Maneiro and M. Querol and J. Renner and I. Rivilla and C. Rogero and B. Romeo and C. Romo-Luque and V. San Nacienciano and F. P. Santos and J. M. F. dos Santos and M. Seemann and I. Shomroni and P. A. O. C. Silva and A. Simón and S. R. Soleti and M. Sorel and J. Soto-Oton and J. M. R. Teixeira and S. Teruel-Pardo and J. F. Toledo and C. Tonnelé and S. Torelli and J. Torrent and A. Trettin and A. Usón and P. R. G. Valle and J. F. C. A. Veloso and J. Waiton and A. Yubero-Navarro},
journal= {arXiv preprint arXiv:2502.13215},
year = {2025}
}
Comments
12 pages, 8 Figures