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High-quality electron beams from a helical inverse free-electron laser accelerator

Author

Listed:
  • J. Duris

    (UCLA)

  • P. Musumeci

    (UCLA)

  • M. Babzien

    (Accelerator Test Facility, Brookhaven National Laboratory)

  • M. Fedurin

    (Accelerator Test Facility, Brookhaven National Laboratory)

  • K. Kusche

    (Accelerator Test Facility, Brookhaven National Laboratory)

  • R. K. Li

    (UCLA)

  • J. Moody

    (UCLA)

  • I. Pogorelsky

    (Accelerator Test Facility, Brookhaven National Laboratory)

  • M. Polyanskiy

    (Accelerator Test Facility, Brookhaven National Laboratory)

  • J. B. Rosenzweig

    (UCLA)

  • Y. Sakai

    (UCLA)

  • C. Swinson

    (Accelerator Test Facility, Brookhaven National Laboratory)

  • E. Threlkeld

    (UCLA)

  • O. Williams

    (UCLA)

  • V. Yakimenko

    (SLAC National Accelerator Laboratory)

Abstract

Compact, table-top sized accelerators are key to improving access to high-quality beams for use in industry, medicine and academic research. Among laser-based accelerating schemes, the inverse free-electron laser (IFEL) enjoys unique advantages. By using an undulator magnetic field in combination with a laser, GeV m−1 gradients may be sustained over metre-scale distances using laser intensities several orders of magnitude less than those used in laser wake-field accelerators. Here we show for the first time the capture and high-gradient acceleration of monoenergetic electron beams from a helical IFEL. Using a modest intensity (~1013 W cm−2) laser pulse and strongly tapered 0.5 m long undulator, we demonstrate >100 MV m−1 accelerating gradient, >50 MeV energy gain and excellent output beam quality. Our results pave the way towards compact, tunable GeV IFEL accelerators for applications such as driving soft X-ray free-electron lasers and producing γ-rays by inverse Compton scattering.

Suggested Citation

  • J. Duris & P. Musumeci & M. Babzien & M. Fedurin & K. Kusche & R. K. Li & J. Moody & I. Pogorelsky & M. Polyanskiy & J. B. Rosenzweig & Y. Sakai & C. Swinson & E. Threlkeld & O. Williams & V. Yakimenk, 2014. "High-quality electron beams from a helical inverse free-electron laser accelerator," Nature Communications, Nature, vol. 5(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5928
    DOI: 10.1038/ncomms5928
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    Cited by:

    1. R. Huber & F. Kern & D. D. Karnaushenko & E. Eisner & P. Lepucki & A. Thampi & A. Mirhajivarzaneh & C. Becker & T. Kang & S. Baunack & B. Büchner & D. Karnaushenko & O. G. Schmidt & A. Lubk, 2022. "Tailoring electron beams with high-frequency self-assembled magnetic charged particle micro optics," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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