Author/Authors :
Saito، نويسنده , , Kazuyoshi and Takayama، نويسنده , , Ken and Ozaki، نويسنده , , Toshiyuki and Kishiro، نويسنده , , Junichi and Ebihara، نويسنده , , Kiyokazu and Hiramatsu، نويسنده , , Shigenori، نويسنده ,
Abstract :
We have designed and constructed a prebunched FEL amplifier consisting of a prebuncher and a standard FEL. Microwave power saturation with a short wiggler length has been realized by a prebunched beam. We have also examined microwave phase evolutions. It has been demonstrated the adjustable range of the output microwave phase by changing the input microwave phase is restricted within a narrow band due to spontaneous emission radiated by the prebunched beam.