Exploring the radiation reaction at 10$^{21 }$W/cm$^{2}$

ORAL

Abstract

The experimental confirmation for the domain of validity of classical radiation reaction theory, as well as demonstration of the radiation reaction process is still missing. The thresholds for radiation reaction dominated regime are under a constant scientific debate. We present a theoretical and numerical study of the experimental conditions that would provide an answer to some of these questions in an all-optical configuration with laser systems available today (i.e. I$\sim $10$^{21 }$W/cm$^{2})$. We preformed 3-dimensional full-scale particle-in-cell (PIC) simulations of linear wakefield accelerators accounting for the radiation reaction, allowing the electron beam to interact with an intense laser after it leaves the plasma. We discuss measurable signatures of radiation reaction both in the electron spectra, and the backscattered laser photons, encompassing current and near-future laser technology. Electron energy loss of 40{\%} due to the radiation reaction was obtained using a laser of intensity 10$^{21 }$W/cm$^{2}$ and an LWFA electron beam of 1 GeV. The theoretical predictions for energy loss are in excellent agreement with the simulation results for various configurations presented.~

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Authors

  • Marija Vranic

    GoLP/IPFN, Instituto Superior T\'ecnico, Lisbon, Portugal

  • Joana Martins

    GoLP/IPFN, Instituto Superior T\'ecnico, Lisbon, Portugal, Instituto Superior T\'ecnico - GoLP/Instituto de Plasmas e Fusao Nuclear

  • Jorge Vieira

    GoLP/IPFN, Instituto Superior T\'ecnico, Lisbon, Portugal, GoLP/Instituto de Plasmas e Fus\~ao Nuclear - Laborat\'orio Associado, Instituto Superior T\'ecnico, Lisbon, Portugal, Instituto de Plasmas e Fus\~ao Nuclear-Laborat\'orio Associado, Instituto Superior T\'ecnico, Instituto Superior Tecnico, Lisboa, Portugal

  • Ricardo Fonseca

    GoLP/IPFN - IST; DCTI, ISCTE, GoLP/Instituto de Plasmas e Fusao Nuclear - LA, Instituto Superior Tecnico, Portugal, DCTI, ISCTE, Lisbon University Institute, Portugal, GoLP/Instituto de Plasmas e Fus\~ao Nuclear - Laboratorio Associado, Instituto Superior Tecnico, Lisbon, Portugal, Departamento de Ci\^encias e Tecnologias da Informa\c{c}\~ao, Instituto Superior de Ci\^encias do Trabalho e da Empresa, Lisbon, Portugal, GoLP/IPFN, Instituto Superior T\'ecnico, ISCTE-IUL, DCTI, ISCTE, Lisbon University Institute

  • Luis Silva

    GoLP/IPFN - IST, GoLP/Instituto de Plasmas e Fusao Nuclear - LA, Instituto Superior Tecnico, Portugal, GoLP/IPFN, Instituto Superior T\'ecnico, Lisbon, Portugal, GoLP/Instituto de Plasmas e Fus\~ao Nuclear - Laboratorio Associado, Instituto Superior Tecnico, Lisbon, Portugal, GoLP/Instituto de Plasmas e Fus\~ao Nuclear - Laborat\'orio Associado, Instituto Superior T\'ecnico, Lisbon, Portugal, Instituto Superior T\'ecnico - GoLP/Instituto de Plasmas e Fusao Nuclear, Instituto de Plasmas e Fus\~ao Nuclear-Laborat\'orio Associado, Instituto Superior T\'ecnico, Instituto Superior Tecnico, Lisboa Portugal, GoLP, Instituto Superior T\'ecnico