Author/Authors :
Tremaine، نويسنده , , A and Frigola، نويسنده , , P and Murokh، نويسنده , , A and Musumeci، نويسنده , , P and Pellegrini، نويسنده , , C and Rosenzweig، نويسنده , , X.J. and Babzien، نويسنده , , M and Ben-Zvi، نويسنده , , I and Johnson، نويسنده , , E and Malone، نويسنده , , R and Rakowsky، نويسنده , , G and Skaritka، نويسنده , , J and Wang، نويسنده , , X.J and Yu، نويسنده , , L.H and Van Bibber، نويسنده , , Uchechukwu K.A. and Hill، نويسنده , , J.M and Le Sage، نويسنده ,
Abstract :
We describe the status and initial commissioning of the Visible to Infrared SASE Amplifier (VISA) experiment. VISA uses a strong focusing 4 m undulator, the Brookhaven National Laboratory ATF linac with an energy of 72 MeV, and a photoinjector electron source. The VISA fundamental radiation wavelength is near 800 nm and the power expected at saturation is near 60 MW. Power, angular and spectral measurements are planned for the VISA radiation and these results will be analyzed and compared with SASE FEL theory and computer simulation. In addition, the induced electron beam micro-bunching will be measured using coherent transition radiation.
Keywords :
SASE , FEL , Saturation , Undulator , Strong focussing
