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Timeo, L.

Paper Title Page
TUP004 Status of the CTF3 Probe Beam Linac CALIFES 389
  • 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.