The generation of ultra-short electron bunches with ultra-low timing-jitter relative to the photocathode (PC)laser has been experimentally proved for the first time at the SPARC_LAB test-facility (INFN-LNF, Frascati) exploiting a two-stage hybrid compression scheme. The first stage employs RFbased compression (velocity-bunching), which shortens the bunch and imprints an energy chirp on it. The second stage is performed in a non-isochronous dogleg line, where the compression is completed resulting in a final bunch duration below 90 fs(rms). At the same time, the beam arrival timing-jitter with respect to the PC laser has been measured to be lower than 20 fs(rms). The reported results have been validated with numerical simulations.

Femtosecond timing-jitter between photo-cathode laser and ultra-short electron bunches by means of hybrid compression / Pompili, RICARDO ANDRES; Anania, M. P.; Bellaveglia, Marco; Biagioni, Angelo; Castorina, G.; Chiadroni, E.; Cianchi, A.; Croia, Michele; Giovenale, D. Di; Ferrario, Massimo; Filippi, Francesco; Gallo, Alessandro; Gatti, Giancarlo; Giorgianni, Flavio; Giribono, Anna; Li, W.; Lupi, Stefano; Mostacci, Andrea; Petrarca, Massimo; Piersanti, Luca; Pirro, G. Di; Romeo, Stefano; Scifo, Jessica; Shpakov, V.; Vaccarezza, Cristina; Villa, F.. - In: NEW JOURNAL OF PHYSICS. - ISSN 1367-2630. - 18:8(2016), p. 083033. [10.1088/1367-2630/18/8/083033]

Femtosecond timing-jitter between photo-cathode laser and ultra-short electron bunches by means of hybrid compression

BELLAVEGLIA, MARCO;BIAGIONI, ANGELO;Castorina, G.;Chiadroni, E.;CROIA, MICHELE;FERRARIO, MASSIMO;FILIPPI, FRANCESCO;GALLO, ALESSANDRO;GATTI, giancarlo;GIORGIANNI, FLAVIO;GIRIBONO, ANNA;LUPI, Stefano;MOSTACCI, Andrea;PETRARCA, MASSIMO;PIERSANTI, LUCA;ROMEO, STEFANO;SCIFO, JESSICA;VACCAREZZA, CRISTINA;
2016

Abstract

The generation of ultra-short electron bunches with ultra-low timing-jitter relative to the photocathode (PC)laser has been experimentally proved for the first time at the SPARC_LAB test-facility (INFN-LNF, Frascati) exploiting a two-stage hybrid compression scheme. The first stage employs RFbased compression (velocity-bunching), which shortens the bunch and imprints an energy chirp on it. The second stage is performed in a non-isochronous dogleg line, where the compression is completed resulting in a final bunch duration below 90 fs(rms). At the same time, the beam arrival timing-jitter with respect to the PC laser has been measured to be lower than 20 fs(rms). The reported results have been validated with numerical simulations.
2016
Beam dynamics; Magnetic compression; Photo-injector; Synchronization; Timing jitter; Velocity-bunching; Physics and Astronomy (all)
01 Pubblicazione su rivista::01a Articolo in rivista
Femtosecond timing-jitter between photo-cathode laser and ultra-short electron bunches by means of hybrid compression / Pompili, RICARDO ANDRES; Anania, M. P.; Bellaveglia, Marco; Biagioni, Angelo; Castorina, G.; Chiadroni, E.; Cianchi, A.; Croia, Michele; Giovenale, D. Di; Ferrario, Massimo; Filippi, Francesco; Gallo, Alessandro; Gatti, Giancarlo; Giorgianni, Flavio; Giribono, Anna; Li, W.; Lupi, Stefano; Mostacci, Andrea; Petrarca, Massimo; Piersanti, Luca; Pirro, G. Di; Romeo, Stefano; Scifo, Jessica; Shpakov, V.; Vaccarezza, Cristina; Villa, F.. - In: NEW JOURNAL OF PHYSICS. - ISSN 1367-2630. - 18:8(2016), p. 083033. [10.1088/1367-2630/18/8/083033]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/953544
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