Showing papers by "L. Maraschi published in 1994"
6 citations
01 Feb 1994
TL;DR: In this paper, a proposal for a replica X-ray optics to be developed in Italy for NASA's Xray spectroscopy mission AXAF-S is presented. But this system is based on state-of-the-art technology for the production of replica Xray optics.
Abstract: This document describes a proposal for a replica X-ray optics to be developed in Italy for NASA's X-ray spectroscopy mission AXAF-S. The program is based on state of the art technology for the production of replica X-ray optics. On the basis of the experience with the Jet-X mirror shells (to be flown on the Spectrum X-(gamma) satellite), a spatial resolution of 15 - 30 arcsec half power diameter (HPD) can be achieved for the AXAF-S optics. The characteristics of the proposed optical system are described and its performances evaluated by using the current baseline configuration for the array of X-ray calorimeters in the focal plane. The impact of the proposed replica X-ray optics is briefly outlined and a comparison with foil optics (1 - 3 arcmin HPD resolution) is carried out.