Physical Review Special Topics. Accelerators and Beams (Jun 2011)

Self-amplified spontaneous emission for a single pass free-electron laser

  • L. Giannessi,
  • D. Alesini,
  • P. Antici,
  • A. Bacci,
  • M. Bellaveglia,
  • R. Boni,
  • M. Boscolo,
  • F. Briquez,
  • M. Castellano,
  • L. Catani,
  • E. Chiadroni,
  • A. Cianchi,
  • F. Ciocci,
  • A. Clozza,
  • M. E. Couprie,
  • L. Cultrera,
  • G. Dattoli,
  • M. Del Franco,
  • A. Dipace,
  • G. Di Pirro,
  • A. Doria,
  • A. Drago,
  • W. M. Fawley,
  • M. Ferrario,
  • L. Ficcadenti,
  • D. Filippetto,
  • F. Frassetto,
  • H. P. Freund,
  • V. Fusco,
  • G. Gallerano,
  • A. Gallo,
  • G. Gatti,
  • A. Ghigo,
  • E. Giovenale,
  • A. Marinelli,
  • M. Labat,
  • B. Marchetti,
  • G. Marcus,
  • C. Marrelli,
  • M. Mattioli,
  • M. Migliorati,
  • M. Moreno,
  • A. Mostacci,
  • G. Orlandi,
  • E. Pace,
  • L. Palumbo,
  • A. Petralia,
  • M. Petrarca,
  • V. Petrillo,
  • L. Poletto,
  • M. Quattromini,
  • J. V. Rau,
  • S. Reiche,
  • C. Ronsivalle,
  • J. Rosenzweig,
  • A. R. Rossi,
  • V. Rossi Albertini,
  • E. Sabia,
  • L. Serafini,
  • M. Serluca,
  • I. Spassovsky,
  • B. Spataro,
  • V. Surrenti,
  • C. Vaccarezza,
  • M. Vescovi,
  • C. Vicario

DOI
https://doi.org/10.1103/PhysRevSTAB.14.060712
Journal volume & issue
Vol. 14, no. 6
p. 060712

Abstract

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SPARC (acronym of “Sorgente Pulsata ed Amplificata di Radiazione Coerente”, i.e. Pulsed and Amplified Source of Coherent Radiation) is a single pass free-electron laser designed to obtain high gain amplification at a radiation wavelength of 500 nm. Self-amplified spontaneous emission has been observed driving the amplifier with the high-brightness beam of the SPARC linac. We report measurements of energy, spectra, and exponential gain. Experimental results are compared with simulations from several numerical codes.