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Scaling of beam collective effects with bunch charge in the compactlight free-electron laser

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  • S. Di Mitri
  • A. Latina
  • M. Aicheler
  • A. Aksoy
  • D. Alesini
  • A. Castilla
  • J. Clarke
  • H.M.C. Cortés
  • M. Croia
  • G. D’auria
  • M. Diomede
  • D. Dunning
  • M. Ferrario
  • A. Gallo
  • A. Giribono
  • V. Goryashko
  • A. Mostacci
  • F. Nguyen
  • R. Rochow
  • J. Scifo
  • B. Spataro
  • N. Thompson
  • C. Vaccarezza
  • A. Vannozzi
  • X. Wu
  • W. Wuensch
Article number125
<mark>Journal publication date</mark>4/12/2020
Issue number4
Number of pages19
Publication StatusPublished
<mark>Original language</mark>English


The CompactLight European consortium is designing a state-of-the-art x-ray free-electron laser driven by radiofrequency X-band technology. Rooted in experimental data on photo-injector performance in the recent literature, this study estimates analytically and numerically the performance of the CompactLight delivery system for bunch charges in the range 75–300 pC. Space-charge forces in the injector, linac transverse wakefield, and coherent synchrotron radiation in bunch compressors are all taken into account. The study confirms efficient lasing in the soft x-rays regime with pulse energies up to hundreds of microjoules at repetition rates as high as 1 kHz.