Investigation of ionization-induced electron injection in a wakefield driven by laser inside a gas cell

Research output: Contribution to journalArticle


Ionization-induced electron injection was investigated experimentally by focusing a driving laser pulse with a maximum normalized potential of 1.2 at different positions along the plasma density profile inside a gas cell, filled with a gas mixture composed of 99%H2+1%N2. Changing the laser focus position relative to the gas cell entrance controls the accelerated electron bunch properties, such as the spectrum width, maximum energy, and accelerated charge. Simulations performed using the 3D particle-in-cell code WARP with a realistic density profile give results that are in good agreement with the experimental ones. The interest of this regime for optimizing the bunch charge in a selected energy window is discussed.


  • T. L. Audet
  • M. Hansson
  • P. Lee
  • F. G. Desforges
  • G. Maynard
  • S. Dobosz Dufrénoy
  • R. Lehe
  • J. L. Vay
  • B. Aurand
  • A. Persson
  • I. Gallardo González
  • A. Maitrallain
  • P. Monot
  • C. G. Wahlström
  • O. Lundh
  • Brigitte Cros
External organisations
  • University of Paris-Saclay
  • Lawrence Berkeley National Laboratory
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Fusion, Plasma and Space Physics
Original languageEnglish
Article number023110
JournalPhysics of Plasmas
Issue number2
Publication statusPublished - 2016 Feb 1
Publication categoryResearch

Related research output

Gallardo Gonzalez, I., 2018 Nov, Lund: Division of Atomic Physics, Department of Physics, Faculty of Engineering, LTH, Lund University. 236 p.

Research output: ThesisDoctoral Thesis (compilation)

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