PROPAGATION PROPERTIES OF A RELATIVISTIC PREBUNCHED ELECTRON BEAM IN FREE ELECTRON LASER

• ding wu^{1 ,} , 
• yang yunyuan² , 

• 1.

  Institute of Applied Physics and Computational Mathematics,P .O.Box 8009,Beijing 100088,China;

• 2.

  Graduate School,China Academy of Engineering and Physics,P.O.Box 8009,Beiji ng 100088,China