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Proceedings Paper

The calibration and testing of the eROSITA X-ray mirror assemblies
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Paper Abstract

In 2016 the X-ray Survey Telescope eROSITA, designed and built at MPE, will be launched on the Russian Spektr- Roentgen-Gamma Mission. A compact bundle of 7 co-aligned mirror modules with a focal length of 1600 mm and 54 nested mirror shells each form the X-ray telescope. The sensitivity of the telescope in terms of effective area, field-ofview (61'), and angular resolution (~16" HEW on-axis) will yield a high grasp of about 1000 cm2 deg2 around 1 keV with an average angular resolution of ~26" HEW over the field-of-view (30" including optical and spacecraft error contributions). All flight mirror modules including a flight spare have been completed and passed their acceptance tests in December 2013. The mirror modules now have all been mated with their corresponding X-ray baffles to form mirror assemblies and the passed rigorous environmental vibration and thermal cycling tests. Here we report on the results of these measurements and on the calibration measurements planned for the completed flight mirror assemblies.

Paper Details

Date Published: 31 July 2014
PDF: 6 pages
Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91441X (31 July 2014); doi: 10.1117/12.2056739
Show Author Affiliations
Vadim Burwitz, Max-Planck-Institut für extraterrestrische Physik (Germany)
Peter Predehl, Max-Planck-Institut für extraterrestrische Physik (Germany)
Peter Friedrich, Max-Planck-Institut für extraterrestrische Physik (Germany)
Heinrich Bräuninger, Max-Planck-Institut für extraterrestrische Physik (Germany)
Josef Eder, Max-Planck-Institut für extraterrestrische Physik (Germany)
Elmar Pfeffermann, Max-Planck-Institut für extraterrestrische Physik (Germany)
Wolfgang Burkert, Max-Planck-Institut für extraterrestrische Physik (Germany)
Konrad Dennerl, Max-Planck-Institut für extraterrestrische Physik (Germany)
Gisela Hartner, Max-Planck-Institut für extraterrestrische Physik (Germany)
Benedikt Menz, Max-Planck-Institut für extraterrestrische Physik (Germany)
Maria Fürmetz, Max-Planck-Institut für extraterrestrische Physik (Germany)
Giuseppe Valsecchi, Media Lario Technologies (Italy)
Fabio Marioni, Media Lario Technologies (Italy)
Gabriele Grisoni, Media Lario Technologies (Italy)


Published in SPIE Proceedings Vol. 9144:
Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Jan-Willem A. den Herder; Mark Bautz, Editor(s)

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