Author/Authors :
Zheng، نويسنده , , X.D and Shiho، نويسنده , , M and Maebara، نويسنده , , S and Nakamura، نويسنده , , E and Watanabe، نويسنده , , H. and Koarai، نويسنده , , T and Takayama، نويسنده , , K and Kishiro، نويسنده , , J and Minami، نويسنده , , K and Horioka، نويسنده , , K and Ogawa، نويسنده , , M and Kawasaki، نويسنده , , S، نويسنده ,
Abstract :
We propose to use a corrugated waveguide, which is placed in the upstream of the wiggler, as a prebuncher and seed power generator of mm-wave FEL. A compacted high-power, high-efficiency mm-wave FEL is expected by using such configuration. As the first step, the experiments of beam extraction and investigations of characteristics of the seed-power generator have been carried out with the 1 MV Lax-1 linac. The corrugated waveguide is designed operating in frequency of 7.9 GHz driven by the Lax-1 linac. Peak output power of about 1.2 MW at 7.8 GHz is radiated in a 50 ns pulse.
Keywords :
Prebuncher , Seed-power , Corrugated waveguide , FEL , BWO
