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URLhttps://doi.org/10.18429/JACoW-IPAC2024-TUPC29
TitleOptimization of nanostructured plasmas for laser wakefield acceleration using a Bayesian algorithm
Authors
  • J. Rodríguez Pérez, J. Resta-Lopez
    Instituto Universitario de Ciencia de los Materiales
  • A. Bonatto
    Universidade Federal de Ciências da Saúde de Porto Alegre
  • C. Bontoiu
    The University of Liverpool
  • G. Xia
    Cockcroft Institute
  • P. Martín-Luna
    Instituto de Física Corpuscular
AbstractNanostructures are currently attracting attention as a medium for obtaining ultra-high-density plasmas for beam-driven or laser-driven acceleration. This study investigates Bayesian optimization in Laser Wakefield Acceleration (LWFA) to enhance solid-state plasma parameters towards achieving extremely high gradients on the order of TV/m or beyond, specifically focusing on nanostructured plasmas based on arrays of carbon nanotubes. Through Particle-In-Cell (PIC) simulations via EPOCH and custom Python scripts, we conducted a parameter analysis for various configurations of carbon nanotube arrays. Utilizing the open-source machine learning library BoTorch for optimization, our work resulted in a detailed database of simulation results. This enabled us to pinpoint optimal parameters for generating effective wakefields in these specialized plasmas. Ultimately, the results demonstrate that Bayesian optimization is an excellent tool for significantly refining parameter selection for nanostructures like carbon nanotube arrays, thus enabling the design of promising nanostructures for LWFA.
Paperdownload: TUPC29.pdf
CiteBibTeX, LaTeX, Text/Word, RIS, EndNote
Conference15th International Particle Accelerator Conference
Series
LocationNashville, TN
Date19-24 May 2024
PublisherJACoW Publishing, Geneva, Switzerland
Editorial BoardFulvia Pilat - Oak Ridge National Laboratory Wolfram Fischer - Brookhaven National Laboratory Robert Saethre - Oak Ridge National Laboratory Petr Anisimov - Los Alamos National Laboratory Ivan Andrian - Elettra-Sincrotrone Trieste S.C.p.A.
Online ISBN978-3-95450-247-9
Online ISSN2673-5490
Received14 May 2024
Revised17 May 2024
Accepted17 May 2024
Issued01 July 2024
DOI10.18429/JACoW-IPAC2024-TUPC29
Pages1064-1067