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Proceedings Paper

Production, assembly, and alignment of the XSPECT mirror modules for the SODART x-ray telescope on the Spectrum Roentgen Gamma satellite
Author(s): Josef Polny; Niels J. Westergaard; Finn Erland Christensen; Hans Ulrich Noergaard-Nielsen; Herbert W. Schnopper
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Paper Abstract

Danish Space Research Institute is supplying the high throughput x-ray concentrators, the so called SODART telescopes, to be flown on the Spectrum Rontgen-Gamma (SRG) satellite. We have completed the process of the developing, building, testing and calibrating the two flight units and one spare unit. Their design is based on the principle of multiple, concentrically nested foil mirrors constituting a conical approximation of the Wolter I geometry. We describe some aspects of the mechanical design, alignment and production process. The optical characteristics of the thin foil telescopes are partly determined by the optical characteristics of the foil mirrors and partly by the assembly and alignment tolerances. The influence of the mirror manufacture processes on some aspects of its optical characteristics is discussed. The concept and the steps of the assembly and alignment procedure are given. The process of obtaining the required accuracy involves a number of technological processes that need optimization in order to reduce the mechanical errors. The overall alignment was tested and improved by optical methods. The experience gained during the development and building of the SODART telescopes shows the potential for improvements in the utilization of the foil mirrors optical characteristics and in future thin foil telescope design and manufacture.

Paper Details

Date Published: 11 July 1997
PDF: 11 pages
Proc. SPIE 3113, Grazing Incidence and Multilayer X-Ray Optical Systems, (11 July 1997); doi: 10.1117/12.278864
Show Author Affiliations
Josef Polny, Danish Space Research Institute (Denmark)
Niels J. Westergaard, Danish Space Research Institute (Denmark)
Finn Erland Christensen, Danish Space Research Institute (Denmark)
Hans Ulrich Noergaard-Nielsen, Danish Space Research Institute (Denmark)
Herbert W. Schnopper, Smithsonian Astrophysical Observatory (United States)


Published in SPIE Proceedings Vol. 3113:
Grazing Incidence and Multilayer X-Ray Optical Systems
Richard B. Hoover; Arthur B. C. Walker, Editor(s)

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