30 September 2011 Development and testing of the eROSITA mirror modules
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Abstract
MPE will provide the X-ray Survey Telescope eROSITA for the Russian Spektrum-Roentgen-Gamma Mission to be launched in 2013. It consists of a compact bundle of 7 co-aligned mirror modules with a focal length of 1600 mm and 54 nested mirror shells each. Therefore, its sensitivity in terms of effective area, field-of-view (61'), and angular resolution (15" 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). After an extended test program on single mirror shells, assembled test modules (6 shells) and a qualification model we have now started integration of flight mirror modules. We give a résumé on the development and test program including key improvements to the shell integration method. Moreover, we report on the integration progress and present first results on the X-ray performance of partially integrated mirror modules.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Vadim Burwitz, Peter Friedrich, Heinrich Bräuninger, Bernd Budau, Wolfgang Burkert, Josef Eder, Michael Freyberg, Gisela Hartner, Elmar Pfeffermann, Peter Predehl, Luigina Arcangeli, Giuseppe Borghi, Andrea Borroni, Oberto Citterio, Ivan Ferrario, Gabriele Grisoni, Fabio Marioni, Antonio Ritucci, Massimiliano Rossi, Giuseppe Valsecchi, Dervis Vernani, "Development and testing of the eROSITA mirror modules", Proc. SPIE 8147, Optics for EUV, X-Ray, and Gamma-Ray Astronomy V, 814708 (30 September 2011); doi: 10.1117/12.895382; https://doi.org/10.1117/12.895382
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