We have developed a multi source electron beam evaporation system to p
repare high quality X-ray multilayer mirrors. The system has three ele
ctron guns mounted in an ultra high vacuum chamber. The deposition sys
tem is evacuated by a turbo molecular pump and two sputter ion pumps.
A movable masking system is mounted to deposit several kinds of multil
ayers. First results on niobium-carbon X-ray multilayers are presented
.