Gev plasma accelerators driven in waveguides

S.M. Hooker, E. Brunetti, E. Esarey, J.G. Gallacher, C.G.R. Geddes, A.J. Gonsalves, D.A. Jaroszynski, C. Kamperidis

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

During the last few years laser-driven plasma accelerators have been shown to generate quasi-monoenergetic electron beams with energies up to several hundred MeV. Extending the output energy of laser-driven plasma accelerators to the GeV range requires operation at plasma densities an order of magnitude lower, i.e. 1018 cm−3, and increasing the distance over which acceleration is maintained from a few millimetres to a few tens of millimetres. One approach for achieving this is to guide the driving laser pulse in the plasma channel formed in a gas-filled capillary discharge waveguide. We present transverse interferometric measurements of the evolution of the plasma channel formed and compare these measurements with models of the capillary discharge. We describe in detail experiments performed at Lawrence Berkeley National Laboratory and at Rutherford Appleton Laboratory in which plasma accelerators were driven within this type of waveguide to generate quasi-monoenergetic electron beams with energies up to 1 GeV.
Original languageEnglish
Pages (from-to)B403-B410
JournalPlasma Physics and Controlled Fusion
Volume49
Issue number12B
DOIs
Publication statusPublished - Dec 2007

Keywords

  • laser-driven plasma accelerator
  • quasi-monoenergetic electron beam
  • plasma accelerator

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