• F. Peauger, D. Bogard, G. Cheymol, P. Contrepois, A. Curtoni, G. Dispau, M. Dorlot, W. Farabolini, M. Fontaine, P. Girardot, R. Granelli, F. Harrault, J.L. Jannin, C.L.H. Lahonde-Hamdoun, T. Lerch, P.-A. Leroy, M. Luong, A. Mosnier, F. Orsini, C. Simon
  CEA, Gif-sur-Yvette
• S. Curt, K. Elsener, V. Fedosseev, G. McMonagle, J. Mourier, M. Petrarca, L. Rinolfi, G. Rossat, E. Rugo, L. Timeo
  CERN, Geneva
• R. Roux
  LAL, Orsay

The CLIC project based on the innovative Two Beams Acceleration concept is currently under study at CTF3 where the acceleration of a probe beam will be demonstrated. This paper will describe in details the status of the probe beam linac called CALIFES. This linac (170 MeV, 1 A) is developed by CEA Saclay, LAL Orsay and CERN. It will be installed in the new experimental area of CTF3 to deliver short bunches (1.8 ps) with a charge of 0.6 nC to the CLIC 12 GHz accelerating structures. The linac consists in an rf gun triggered by a laser beam, three LIL sections for bunching and acceleration, a beam diagnostic system and a single klystron with a pulse compression cavity and a dedicated rf network. We report new results of beam dynamic simulation considering the new CLIC parameters. We will give an estimation of the energy and phase deviation over the bunch train (140 ns long) by transient calculation of beam loading. Details about the fabrication of the rf gun, the cavity BPM, the HV modulator and the power phase shifter will be described. New results from laser system studies are discussed. The construction of CALIFES and the start of commissioning will be also reported.

• R. Boni, D. Alesini, M. Bellaveglia, C. Biscari, M. Boscolo, M. Castellano, E. Chiadroni, A. Clozza, L. Cultrera, G. Di Pirro, A. Drago, A. Esposito, M. Ferrario, L. Ficcadenti, D. Filippetto, V. Fusco, A. Gallo, G. Gatti, A. Ghigo, B. Marchetti, A. Marinelli, C. Marrelli, M. Migliorati, A. Mostacci, E. Pace, L. Palumbo, L. Pellegrino, R. Ricci, U. Rotundo, C. Sanelli, M. Serio, F. Sgamma, B. Spataro, F. Tazzioli, S. Tomassini, C. Vaccarezza, M. Vescovi, C. Vicario
  INFN/LNF, Frascati (Roma)
• A. Bacci, I. Boscolo, F. Broggi, F. Castelli, S. Cialdi, C. De Martinis, D. Giove, C. Maroli, V. Petrillo, A.R. Rossi, L. Serafini
  Istituto Nazionale di Fisica Nucleare, Milano
• M. Bougeard, B. Carré, D. Garzella, M. Labat, G. Lambert, H. Merdji, P. Salières, O. Tchebakoff
  CEA, Gif-sur-Yvette
• L. Catani, A. Cianchi
  INFN-Roma II, Roma
• F. Ciocci, G. Dattoli, M. Del Franco, A. Dipace, A. Doria, G.P. Gallerano, L. Giannessi, E. Giovenale, A. Lo Bue, G.L. Orlandi, S. Pagnutti, A. Petralia, M. Quattromini, C. Ronsivalle, P. Rossi, E. Sabia, I.P. Spassovsky, V. Surrenti
  ENEA C.R. Frascati, Frascati (Roma)
• M.-E. Couprie
  SOLEIL, Gif-sur-Yvette
• M. Mattioli, M. Petrarca, M. Serluca
  INFN-Roma, Roma
• J.B. Rosenzweig
  UCLA, Los Angeles, California
• J. Roßbach
  DESY, Hamburg

Funding: Work partially supported by the EU Commission in the sixth framework program. Contract No. 011935 EUROFEL and MIUR(Research Department of Italian Government).
An intense activity on high brilliance photo-injectors for SASE-FEL experiments and facilities, is being carried out, since 2003, in the research site of the INFN Frascati Laboratory, Rome, in collaboration with CNR and ENEA. The SPARC project, a 150 MeV photo-injector, is currently in advanced phase of commissioning. The electron beam, which drives a 530 nm FEL experiment, is being characterized in terms of emittance, energy spread, peak current. The matching with the linac confirmed the theoretical prediction of emittance compensation based on the invariant-envelope matching. The demonstration of the velocity-bunching technique is in progress too. The SPARC photo-injector is the test facility for the soft-X FEL project named SPARX, that is based on the generation of ultra high peak brightness electron beams at the energies of 1.2 and 2.4 GeV generating radiation in the 1.5-13 nm range. SPARX will be realized in the Tor-Vergata University campus. In this paper we report the experimental results obtained so far with SPARC and the design status of the SPARX project.

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