%0 Journal Article
%T Highly-parallelized simulation of a pixelated LArTPC on a GPU
%A DUNE Collaboration (Abud, A. A. et al
%A Amedo, P.
%A Antonova, M.
%A Barenboim, G.
%A Cervera-Villanueva, A.
%A De Romeri, V.
%A Garcia-Peris, M. A.
%A Martin-Albo, J.
%A Martinez-Mirave, P.
%A Mena, O.
%A Molina Bueno, L.
%A Novella, P.
%A Pompa, F.
%A Rocabado Rocha, J. L.
%A Sorel, M.
%A Tortola, M.
%A Tuzi, M.
%A Valle, J. W. F.
%A Yahlali, N.
%J Journal of Instrumentation
%D 2023
%V 18
%N 4
%I IOP Publishing Ltd
%@ 1748-0221
%G English
%F DUNECollaborationAbud_etal2023
%O WOS:000986658100009
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5551), last updated on Fri, 04 Aug 2023 06:58:36 +0000
%X The rapid development of general-purpose computing on graphics processing units (GPGPU) is allowing the implementation of highly-parallelized Monte Carlo simulation chains for particle physics experiments. This technique is particularly suitable for the simulation of a pixelated charge readout for time projection chambers, given the large number of channels that this technology employs. Here we present the first implementation of a full microphysical simulator of a liquid argon time projection chamber (LArTPC) equipped with light readout and pixelated charge readout, developed for the DUNE Near Detector. The software is implemented with an end-to-end set of GPU-optimized algorithms. The algorithms have been written in Python and translated into CUDA kernels using Numba, a just-in-time compiler for a subset of Python and NumPy instructions. The GPU implementation achieves a speed up of four orders of magnitude compared with the equivalent CPU version. The simulation of the current induced on 103 pixels takes around 1 ms on the GPU, compared with approximately 10 s on the CPU. The results of the simulation are compared against data from a pixel-readout LArTPC prototype.
%K Detector modelling and simulations II (electric fields
%K charge transport
%K multiplication
%K and induction
%K pulse formation
%K electron emission
%K etc)
%K Simulation methods and programs
%K Nobleliquid detectors (scintillation
%K ionization
%K double-phase)
%K Time projection Chambers (TPC)
%R 10.1088/1748-0221/18/04/P04034
%U https://arxiv.org/abs/2212.09807
%U https://doi.org/10.1088/1748-0221/18/04/P04034
%P P04034 - 35pp