Author :
Alesini, D. ; Bellaveglia, M. ; Bertolucci, S. ; Boni, R. ; Boscolo, M. ; Castellano, M. ; Chiadroni, E. ; Clozza, A. ; Cultrera, L. ; Pirro, G. Di ; Drago, A. ; Esposito, A. ; Ferrario, M. ; Filippetto, D. ; Fusco, V. ; Gallo, A. ; Gatti, G. ; Ghigo, A.
Abstract :
The SPARC project foresees the realization of a high brightness photo-injector to produce a 150-200 MeV electron beam to drive a SASE-FEL in the visible light. As a first stage of the commissioning a complete characterization of the photoinjector has been accomplished with a detailed study of the emittance compensation process downstream the gun-solenoid system with a novel beam diagnostic device, called emittance meter. In this paper we report the results obtained so far including the first experimental observation of the double emittance minimum effect on which is based the optimised matching with the SPARC linac.
Keywords :
electron sources; free electron lasers; linear accelerators; particle beam diagnostics; SASE-FEL; SPARC emittance-meter; SPARC linac; beam diagnostic device; electron beam production; gun-solenoid system; high brightness photoinjector; Brightness; Cathodes; Electron beams; Linear particle accelerator; Optical pulses; Particle beams; Pulse amplifiers; Radio frequency; Structural beams; Surface emitting lasers;
