Characterization of self-injected electron beams from LWFA experiments at SPARC_LAB

G. Costa*, M. P. Anania, F. Bisesto, E. Chiadroni, A. Cianchi, A. Curcio, M. Ferrario, F. Filippi, A. Marocchino, F. Mira, R. Pompili, A. Zigler

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The plasma-based acceleration is an encouraging technique to overcome the limits of the accelerating gradient in the conventional RF acceleration. A plasma accelerator is able to provide accelerating fields up to hundreds of GeV/m, paving the way to accelerate particles to several MeV over a short distance (below the millimetre range). Here the characteristics of preliminary electron beams obtained with the self-injection mechanism produced with the FLAME high-power laser at the SPARC_LAB test facility are shown. In detail, with an energy laser on focus of 1.5 J and a pulse temporal length (FWHM) of 40 fs, we obtained an electron plasma density due to laser ionization of about 6×1018 cm−3, electron energy up to 350 MeV and beam charge in the range (50–100) pC.

Bibliographical note

Publisher Copyright:
© 2018 Elsevier B.V.

Keywords

  • Electron beams
  • High power laser
  • Laser wakefield acceleration
  • Plasma wakefield acceleration
  • Self-injection

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