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 photo-injector 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 2 mu m 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.
Experimental Demonstration of Emittance Compensation with Velocity Bunching / Ferrario, M.; Alesini, D.; Bacci, A.; Bellaveglia, M.; Boni, R.; Boscolo, M.; Castellano, M.; Chiadroni, E.; Cianchi, A.; Cultrera, L.; Di Pirro, G.; Ficcadenti, L.; Filippetto, D.; Fusco, V.; Gallo, A.; Gatti, G.; Giannessi, L.; Labat, M.; Marchetti, B.; Marrelli, C.; Migliorati, Mauro; Mostacci, Andrea; Pace, E.; Palumbo, Luigi; Quattromini, M.; Ronsivalle, C.; Rossi, A. R.; Rosenzweig, J.; Serafini, L.; Serluca, M.; Spataro, B.; Vaccarezza, C.; Vicario, C.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 104:5(2010), pp. 054801-1-054801-4. [10.1103/physrevlett.104.054801]
Experimental Demonstration of Emittance Compensation with Velocity Bunching
E. Chiadroni;L. Ficcadenti;MIGLIORATI, Mauro;MOSTACCI, Andrea;PALUMBO, Luigi;
2010
Abstract
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 photo-injector 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 2 mu m 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
