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arXiv · 2502.13215

Performance of an Optical TPC Geant4 Simulation with Opticks GPU-Accelerated Photon Propagation

NEXT Collaboration·I. Parmaksiz·K. Mistry·E. Church·C. Adams·J. Asaadi·J. Baeza-Rubio·K. Bailey·N. Byrnes·B. J. P. Jones·I. A. Moya·K. E. Navarro·D. R. Nygren·P. Oyedele·L. Rogers·F. Samaniego·K. Stogsdill·H. Almazán·V. Álvarez·B. Aparicio·A. I. Aranburu·L. Arazi·I. J. Arnquist·F. Auria-Luna·S. Ayet·C. D. R. Azevedo·F. Ballester·M. del Barrio-Torregrosa·A. Bayo·J. M. Benlloch-Rodríguez·F. I. G. M. Borges·A. Brodolin·S. Cárcel·A. Castillo·L. Cid·C. A. N. Conde·T. Contreras·F. P. Cossío·R. Coupe·E. Dey·G. Díaz·C. Echevarria·M. Elorza·J. Escada·R. Esteve·R. Felkai·L. M. P. Fernandes·P. Ferrario·A. L. Ferreira·F. W. Foss·Z. Freixa·J. García-Barrena·J. J. Gómez-Cadenas·J. W. R. Grocott·R. Guenette·J. Hauptman·C. A. O. Henriques·J. A. Hernando Morata·P. Herrero-Gómez·V. Herrero·C. Hervés Carrete·Y. Ifergan·F. Kellerer·L. Larizgoitia·A. Larumbe·P. Lebrun·F. Lopez·N. López-March·R. Madigan·R. D. P. Mano·A. P. Marques·J. Martín-Albo·G. Martínez-Lema·M. Martínez-Vara·R. L. Miller·J. Molina-Canteras·F. Monrabal·C. M. B. Monteiro·F. J. Mora·P. Novella·A. Nuñez·E. Oblak·J. Palacio·B. Palmeiro·A. Para·A. Pazos·J. Pelegrin·M. Pérez Maneiro·M. Querol·J. Renner·I. Rivilla·C. Rogero·B. Romeo·C. Romo-Luque·V. San Nacienciano·F. P. Santos·J. M. F. dos Santos·M. Seemann·I. Shomroni·P. A. O. C. Silva
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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.

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NEXT Collaboration, I. Parmaksiz, K. Mistry, E. Church, C. Adams, J. Asaadi, J. Baeza-Rubio, K. Bailey, N. Byrnes, B. J. P. Jones, I. A. Moya, K. E. Navarro, D. R. Nygren, P. Oyedele, L. Rogers, F. Samaniego, K. Stogsdill, H. Almazán, V. Álvarez, B. Aparicio, A. I. Aranburu, L. Arazi, I. J. Arnquist, F. Auria-Luna, S. Ayet, C. D. R. Azevedo, F. Ballester, M. del Barrio-Torregrosa, A. Bayo, J. M. Benlloch-Rodríguez, F. I. G. M. Borges, A. Brodolin, S. Cárcel, A. Castillo, L. Cid, C. A. N. Conde, T. Contreras, F. P. Cossío, R. Coupe, E. Dey, G. Díaz, C. Echevarria, M. Elorza, J. Escada, R. Esteve, R. Felkai, L. M. P. Fernandes, P. Ferrario, A. L. Ferreira, F. W. Foss, Z. Freixa, J. García-Barrena, J. J. Gómez-Cadenas, J. W. R. Grocott, R. Guenette, J. Hauptman, C. A. O. Henriques, J. A. Hernando Morata, P. Herrero-Gómez, V. Herrero, C. Hervés Carrete, Y. Ifergan, F. Kellerer, L. Larizgoitia, A. Larumbe, P. Lebrun, F. Lopez, N. López-March, R. Madigan, R. D. P. Mano, A. P. Marques, J. Martín-Albo, G. Martínez-Lema, M. Martínez-Vara, R. L. Miller, J. Molina-Canteras, F. Monrabal, C. M. B. Monteiro, F. J. Mora, P. Novella, A. Nuñez, E. Oblak, J. Palacio, B. Palmeiro, A. Para, A. Pazos, J. Pelegrin, M. Pérez Maneiro, M. Querol, J. Renner, I. Rivilla, C. Rogero, B. Romeo, C. Romo-Luque, V. San Nacienciano, F. P. Santos, J. M. F. dos Santos, M. Seemann, I. Shomroni, P. A. O. C. Silva. 2025-02-18. Performance of an Optical TPC Geant4 Simulation with Opticks GPU-Accelerated Photon Propagation. https://doi.org/10.1140/epjc%2Fs10052-025-14612-0

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