Recent Results from the FEL Driven Two-Beam Accelerator Project at CESTA

(WE-1-05) Presenting Author: John Donohue

T. Lefevre, J.L. Rullier; J. T. Donohue; P. Gouard  

CEA/Centre d'Etudes Scientifiques et Techniques d'Aquitaine, Centre d'Etudes Nucl$\acute{e}$aires de Bordeaux-Gradignan, CEA/Centre d'Etudes d'Ile de France

Last year an intense electron beam produced by an induction accelerator was bunched using a Free-Electron-Laser and used to generate r-f power by its passage through a resonant cavity [1]. An improved version of this experiment has been carried out in the last few months, with the aim of obtaining higher beam current and r-f power. In particular, an important effort was made to directly observe the beam bunching by optical means. The preliminary results of this updated experiment will be presented.

[1] T. Lefevre et al., Phys. Rev. Lett. 84 (2000), 1188-91.