Fast 4pi track reconstruction in nuclear emulsion detectors based on GPU technology

A. Ariga, T. Ariga
Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland
arXiv:1311.5334 [physics.ins-det], (21 Nov 2013)


   author={Ariga}, A. and {Ariga}, T.},

   title={"{Fast 4$$backslash$pi$ track reconstruction in nuclear emulsion detectors based on GPU technology}"},

   journal={ArXiv e-prints},




   keywords={Physics – Instrumentation and Detectors, High Energy Physics – Experiment, Physics – Data Analysis, Statistics and Probability},




   adsnote={Provided by the SAO/NASA Astrophysics Data System}


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Fast 4pi solid angle particle track recognition has been a challenge in particle physics for a long time, especially in using nuclear emulsion detectors. The recent advances in computing technology opened the way for its realization. A fast 4pi solid angle particle track reconstruction based on GPU technology combined with a multithread programming is reported here with a detailed comparison between GPU-based and CPU-based programming. A 60 times faster processing of 3D emulsion detector data, corresponding to processing of 15 cm2 emulsion surface scanned per hour, has been achieved by GPUs with an excellent tracking performance.
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