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Proceedings Paper • Open Access

Alternative designs for space x-ray telescopes
Author(s): R. Hudec; L. Pína; Veronika Maršíková; Daniela Černá; A. Inneman; V. Tichý

Paper Abstract

The X-ray optics is a key element of space X-ray telescopes, as well as other X-ray imaging instruments. The grazing incidence X-ray lenses represent the important class of X-ray optics. Most of grazing incidence (reflective) X-ray imaging systems used in astronomy but also in other (laboratory) applications are based on the Wolter 1 (or modified) arrangement. But there are also other designs and configurations proposed, used and considered for future applications both in space and in laboratory. The Kirkpatrick-Baez (K-B) lenses as well as various types of Lobster-Eye optics and MCP/Micropore optics serve as an example. Analogously to Wolter lenses, the X-rays are mostly reflected twice in these systems to create focal images. Various future projects in X-ray astronomy and astrophysics will require large segments with multiple thin shells or foils. The large Kirkpatrick-Baez modules, as well as the large Lobster-Eye X-ray telescope modules in Schmidt arrangement may serve as examples. All related space projects will require high quality and light segmented shells (bent or flat foils) with high X-ray reflectivity and excellent mechanical stability. The Multi Foil Optics (MFO) approach represent a promising alternative for both LE and K-B X-ray optical modules. Several types of reflecting substrates may be considered for these applications, with emphasis on thin float glass sheets and, more recently, high quality silicon wafers. This confirms the importance of non-Wolter X-ray optics designs for the future. The alternative designs require novel reflective substrates which are also discussed in the paper.

Paper Details

Date Published: 17 November 2017
PDF: 7 pages
Proc. SPIE 10563, International Conference on Space Optics — ICSO 2014, 1056320 (17 November 2017); doi: 10.1117/12.2304205
Show Author Affiliations
R. Hudec, Astronomical Institute of the ASCR (Czech Republic)
Czech Technical Univ. (Czech Republic)
L. Pína, Czech Technical Univ. (Czech Republic)
Rigaku Innovative Technologies Europe (Czech Republic)
Veronika Maršíková, Rigaku Innovative Technologies Europe (Czech Republic)
Daniela Černá, Rigaku Innovative Technologies Europe (Czech Republic)
A. Inneman, Rigaku Innovative Technologies Europe (Czech Republic)
V. Tichý, Czech Technical Univ. (Czech Republic)

Published in SPIE Proceedings Vol. 10563:
International Conference on Space Optics — ICSO 2014
Zoran Sodnik; Bruno Cugny; Nikos Karafolas, Editor(s)

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