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An ultrashort pulse ultra-violet radiation undulator source driven by a laser plasma wakefield accelerator

  • M. P. Anania
  • , E. Brunetti
  • , S. M. Wiggins
  • , D. W. Grant
  • , G. H. Welsh
  • , R. C. Issac
  • , S. Cipiccia
  • , R. P. Shanks
  • , G. G. Manahan
  • , C. Aniculaesei
  • , S. B. van der Geer
  • , M. J. de Loos
  • , M. W. Poole
  • , B. J. A. Shepherd
  • , J. A. Clarke
  • , W. A. Gillespie
  • , A. M. MacLeod
  • , D. A. Jaroszynski (Lead / Corresponding author)

    Research output: Contribution to journalArticlepeer-review

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    Abstract

    Narrow band undulator radiation tuneable over the wavelength range of 150-260 nm has been produced by short electron bunches from a 2 mm long laser plasma wakefield accelerator based on a 20 TW femtosecond laser system. The number of photons measured is up to 9 × 106 per shot for a 100 period undulator, with a mean peak brilliance of 1 × 1018 photons/s/mrad2/mm2/0.1% bandwidth. Simulations estimate that the driving electron bunch r.m.s. duration is as short as 3 fs when the electron beam has energy of 120-130 MeV with the radiation pulse duration in the range of 50-100 fs.

    Original languageEnglish
    Article number264102
    Number of pages6
    JournalApplied Physics Letters
    Volume104
    Issue number26
    DOIs
    Publication statusPublished - 30 Jun 2014

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