Plan of multi-pulse x-ray source based on inverse compton scattering and present status at Waseda University

A table-top sized X-ray generation system based on inverse Compton scattering has been developed at Waseda University. We have already achieved to generate inverse Compton scattered X-rays with the system, and have been planning to establish a multi-pulse X-ray generation system for the purpose of enhancement of generated photons. Firstly, we have installed a new photocathode RF-gun equipped with an improved type RF cavity and a Cs-Te cathode in place of a Cu cathode. A new cathode can achieve high quantum efficiency which is necessary to produce multi-bunch electron beams. In addition, we have designed multi-pulse UV laser system for generation of multi-bunch electron beams. For future plans, we will investigate beam loading compensation, and then carry out a multi-bunch electron beam generation experiment, moreover, we will consider a design of multi-pulse collision laser generation system. (author)