Ultra-Precision Machining of Aspheric Molds for Next Generation X-Ray Telescopes

Abstract

There is no actual plan to make next-generation X-ray telescope after ASTRO-H project. We are making aspheric fused silica molds for NASA/GSFC that launched hard X-ray telscope made of LCD sheet glasses last June. But the X-ray mirrors were conical shape, not accurate aspheric shape. We intend to make aspheric molding dies of 100 nm accuracy.