• C. Bruni, Y. Fedala, J. Haissinski, M. Lacroix, B. Mouton, R. Roux, A. Variola, Z.F. Zomer
  LAL, Orsay
• E. Bressi
  CNAO Foundation, Milan
• P. Brunelle, M.-E. Couprie, J.-C. Denard, N. Guillotin, P. Lebasque, A. Loulergue, P. Marchand, F. Marteau, R. Nagaoka
  SOLEIL, Gif-sur-Yvette
• P. Gladkikh
  NSC/KIPT, Kharkov

The goal of X-ray sources based on Compton back scattering processes is to develop a compact device, which could produce an intense flux of monochromatic X-rays. Compton back-scattering resuls from collisions between laser pulses and relativistic electron bunches. Due to the relative low value of the Compton cross section, a high charge electron beam, a low emittance and a high focusing at the interaction point are required for the electron beam. In addition, the X-ray flux is related to the characteristics of the electron beam, which are themselves dynamically affected by the Compton interaction. One possible configuration is to inject frequently into a storage ring with a low emittance linear accelerator without waiting for the synchrotron equilibrium. As a consequence, the optics should be designed taking into account the characteristics of the electron beam from the linear accelerator. The accelerator ring design for a 50 MeV electron beam, aiming at producing a flux higher than 10¹³ ph/s, will be presented.