Normal incidence multilayer telescope for galactic EUV observation

We developed normal incidence multilayer telescopes for observing EUV radiation from celestial objects. A telescope consists of spherical mirror coated with Mo/Si multilayer and a position sensitive detector made of microchannel plate on the focal plane. Three kinds of multilayers were deposited on three mirrors, which are optimized for observations of 130–140A, 170–180A and 270–330A, respectively.