Experimental demonstration of emittance compensation with velocity bunching

M. Ferrario, D. Alesini, A. Bacci, M. Bellaveglia, R. Boni, M. Boscolo, M. Castellano, E. Chiadroni, A. Cianchi, L. Cultrera, G. Di Pirro, L. Ficcadenti, D. Filippetto, V. Fusco, A. Gallo, G. Gatti, L. Giannessi, M. Labat, B. Marchetti, C. MarrelliM. Migliorati, A. Mostacci, E. Pace, L. Palumbo, M. Quattromini, C. Ronsivalle, A.R. Rossi, J. Rosenzweig, L. Serafini, M. Serluca, B. Spataro, C. Vaccarezza, C. Vicario

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In this Letter we report the first experiments aimed at the simultaneous demonstration of the emittance compensation process and velocity bunching in a high brightness electron source, the SPARC photoinjector in INFN-LNF. While a maximum compression ratio up to a factor 14 has been observed, in a particular case of interest a compression factor of 3, yielding a slice current of 120 A with less than 2μm slice emittance, has been measured. This technique may be crucial in achieving high brightness beams in photoinjectors aiming at optimized performance of short wavelength single-pass free electron lasers or other advanced applications in laser-plasma accelerators. © 2010 The American Physical Society.
Original languageEnglish
Article number054801
Pages (from-to)-
JournalPhysical Review Letters
Issue number5
Publication statusPublished - 5 Feb 2010
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Ferrario, M., Alesini, D., Bacci, A., Bellaveglia, M., Boni, R., Boscolo, M., ... Vicario, C. (2010). Experimental demonstration of emittance compensation with velocity bunching. Physical Review Letters, 104(5), -. [054801]. https://doi.org/10.1103/PhysRevLett.104.054801