Development of Pulse Laser Super-Cavity for compact high flux X-ray sources

Pulsed Laser Super-Cavity has been developed for compact high brightness x-ray sources based on Laser Compton Scattering at KEK-ATF. The Pulse Laser Super-Cavity increases the laser power and stably makes small laser beam size at the collision point with the electron beam. Recent results of Super-Cavity and multi-bunch electron beam indicate the possibility of the application to K-edge digital subtraction angiography as the compact high flux X-ray source. Therefore, we have planned a compact hard xray source using 50MeV multi-bunch electrons and a pulse stacking technology with 42cm Fabry-Perot cavity. The photon flux is multiplied with the number of bunches by using multi-bunch beam and Super-Cavity. We have finished the constraction of 50MeV linac and started operation in spring 2006. Development of the Super-Cavity and plan of compact x-ray source will be presented at the conference.