Author/Authors :
Nobuhiro and Hajima، نويسنده , , Ryoichi and Yoshii، نويسنده , , Koji and Ueda، نويسنده , , Toru and Sakai، نويسنده , , Fumio and Kotaki، نويسنده , , Hideyuki and Kondoh، نويسنده , , Shuji and Kando، نويسنده , , Masaki and Kinoshita، نويسنده , , Kenichi and Harano، نويسنده , , Hideki and Watanabe، نويسنده , , Takahiro and Uesaka، نويسنده , , Mitsuru and Dewa، نويسنده , , Hideki and Nakajima، نويسنده , , Kazuhisa، نويسنده ,
Abstract :
A photo-cathode RF-gun and a chicane-based bunch-compressor are installed on an S-band linac which had been used for a UT-FEL experiment. Electron bunches extracted from the photo-cathode RF-gun are accelerated by an S-band structure up to 20 MeV and compressed by a chicane magnet. Since the bunch has very small longitudinal size and relatively low energy, coherent synchrotron radiation emitted from the bunch in the chicane creates a nonuniform energy loss in the bunch and degrades the performance of the bunch compressor. In the present paper, the performance of the bunch-compressor under the influence of coherent synchrotron radiation is studied. Preliminary experimental results are also presented.
Keywords :
Chicane , Photo-cathode RF-gun , Bunch compressor , Coherent synchrotron radiation
