B. Feng*, M. Oyamada, F. Hinode, S. Sato, Y. Kondo(a), Y. Shibata(b), and M. Ikezawa(b)
Lab for Nucl. Sci., Tohoku University, Sendai 982, Japan; (a) Dept. of Appl. Phys., (b) Res. Inst. for Sci. Meas., Tohoku Univ., Sendai 980, Japan; * FEL Ctr, Vanderbilt Univ. Nashville, TN37212
Coherent diffraction radiation, generated by relativistic electron bunches passing through an aperture in a metallic foil, has been studied to diagnose the beam bunch shapes at the Tohoku 300 MeV linear accelerator. Using a polychromator and fast data conversion method from frequency to time domain, it is enable to realize a real-time, non-intercepting beam bunch shape diagnostics. The initial experimental results are presented.