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  1. iopscience.iop.org

    Without optimising the channel width and laser focusing parameters, we show that with a 10 PW, 150 fs laser one can obtain an electron beam with over 1.6 nC of super-ponderomotive electrons, with a 6 GeV energy cutoff in a 1.8 mm plasma channel.
    Author:Marija Vranic, Ricardo A Fonseca, Ricardo A Fonseca, Luis O SilvaPublished:2018
    • Article PDF

      Extremely intense laser-based electron acceleration in a plasma channel Marija Vranic1,3, Ricardo A Fonseca1,2 and Luis O Silva1 1GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049- 001 Lisbon, Portugal 2DCTI/ISCTE—Instituto Universitário de Lisboa, 1649-026 Lisboa, Portugal E-mail: marija.vranic@ist.utl.pt, ricardo.fonseca@ist.utl.pt and ...

  2. The prepulse of such a laser can induce a plasma expansion that generates a low-density channel in near-critical gas jets. We present a study of channel formation and subsequent direct laser acceleration of electrons within the pre-formed channel. Radiation reaction affects the acceleration in several ways.
    Author:Marija Vranic, Ricardo A. Fonseca, Luis O. SilvaPublished:2019
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  4. academia.edu

    arXiv:1902.05427v1 [physics.plasm-ph] 12 Feb 2019 Extremely intense laser-based electron acceleration in a plasma channel Marija Vranic GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal E-mail: marija.vranic@ist.utl.pt Ricardo A. Fonseca1,2 1 GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico ...
  5. ocs.ciemat.es

    Extremely intense laser-based electron acceleration in a plasma channel M. Vranic 1, R.A. Fonseca 1;2, L. O. Silva 1 1 GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal 2 DCTI/ISCTE - Instituto Universitário de Lisboa, 1649-026 Lisboa, Portugal Plasma channels represent a well-suited environment for particle acceleration ...
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  7. physics.aps.org

    Dec 18, 2024A laser-driven electron accelerator delivers beams of 10-GeV electrons—an approach that could lead to cheaper, more compact alternatives to large-scale x-ray sources and particle accelerators. ... x-ray sources—based on laser-accelerated electrons. Plasma wakefields are created by intense laser pulses propagating in a plasma. The pulses ...
  8. ncbi.nlm.nih.gov

    National Center for Biotechnology Information

    https://www.ncbi.nlm.nih.gov › pmc › articles › PMC9701684

    Introduction. The laser-plasma accelerator 1-4 has advanced to the stage where control of its beam parameters 5-11 and stability are the main development challenges. Achieving high quality electron beams in laser wakefield accelerators requires stable propagation of the driving laser pulse 12-18.This is usually challenging because of mode mismatching arising from relativistic self-focusing.
  9. link.springer.com

    Jan 8, 2024In this paper, an analytical formalism is developed for electron acceleration using two crossed and identical laser pulses in a plasma channel. The net electron energy is increased and the electron diffraction is decreased through the utilization of radially polarized (RP) crossed-focused laser pulses. The study investigates the impact of various parameters, such as laser amplitude, ion ...
  10. The laser pulse, together with its accelerated electron beam, then enters a higher-density plasma region in the radiator stage, where both the accelerating field (E x ∝ n e) and the laser fields (through relativistic self-focusing) are enhanced significantly, even though the laser depletion and electron dephasing occur faster, as shown in Fig ...

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