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Properties of the ultrashort gain length, self-amplified spontaneous emission free-electron laser in the linear regime and saturation

  • A. Murokh
  • , R. Agustsson
  • , M. Babzien
  • , I. Ben-Zvi
  • , L. Bertolini
  • , K. van Bibber
  • , R. Carr
  • , M. Cornacchia
  • , P. Frigola
  • , J. Hill
  • , E. Johnson
  • , L. Klaisner
  • , G. Le Sage
  • , M. Libkind
  • , R. Malone
  • , H. D. Nuhn
  • , C. Pellegrini
  • , S. Reiche
  • , G. Rakowsky
  • , J. Rosenzweig
  • R. Ruland, J. Skaritka, A. Toor, A. Tremaine, X. Wang, V. Yakimenko
  • University of California at Los Angeles
  • Brookhaven National Laboratory
  • Lawrence Livermore National Laboratory
  • SLAC National Accelerator Laboratory

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

VISA (Visible to Infrared SASE Amplifier) is a high-gain self-amplified spontaneous emission (SASE) free-electron laser (FEL), which achieved saturation at 840 nm within a single-pass 4-m undulator. The experiment was performed at the Accelerator Test Facility at BNL, using a high brightness 70-MeV electron beam. A gain length shorter than 18 cm has been obtained, yielding a total gain of [Formula presented] at saturation. The FEL performance, including the spectral, angular, and statistical properties of SASE radiation, has been characterized for different electron beam conditions. Results are compared to the three-dimensional SASE FEL theory and start-to-end numerical simulations of the entire injector, transport, and FEL systems. An agreement between simulations and experimental results has been obtained at an unprecedented level of detail.

Original languageEnglish
Pages (from-to)5
Number of pages1
JournalPhysical Review E
Volume67
Issue number6
DOIs
StatePublished - 2003

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