Laser-driven acceleration of electrons in a partially ionized plasma channel

T.P. Rowlands-Rees, C. Kamperidis, S. Kneip, A.J. Gonsalves, S.P.D. Mangles, J.G. Gallacher, E. Brunetti, T. Ibbotson, D.A. Jaroszynski

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Abstract

The generation of quasimonoenergetic electron beams, with energies up to 200 MeV, by a laser-plasma accelerator driven in a hydrogen-filled capillary discharge waveguide is investigated. Injection and acceleration of electrons is found to depend sensitively on the delay between the onset of the discharge current and the arrival of the laser pulse. A comparison of spectroscopic and interferometric measurements suggests that injection is assisted by laser ionization of atoms or ions within the channel.
Original languageEnglish
Article number105005
Number of pages4
JournalPhysical Review Letters
Volume100
Issue number10
DOIs
Publication statusPublished - 14 Mar 2008

Keywords

  • laser ionization
  • electron acceleration
  • plasma channel

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