Abstract

Focusing optics in hard X-ray region above 10keV will open a new window of the universe, where extremely hot astrophysical phenomena or non-thermal high energy phenomena like jet occur in unknown way. This paper deals with a novel manufacturing process of replicated Pt/C multilayer mirrors which will be used for the next-generation hard X-ray telescope after 2012. The specifications of such mirrors are as follows ; shape accuracy of aspherical mirrors is less than 100nm and surface roughness is also less than 0.3nm rms. The mirror tolerance is tighter than soft X-ray telescope, because of shorter wavelength application.

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