CCD-detector development for the DUO and the ROSITA missions

Norbert Meidinger; Stefan Bonerz; Jakob Englhauser; Guenther Hasinger; Robert Hartmann; Sven Herrmann; Peter Holl; Guenther Kettenring; Nils Kimmel; Gerhard Lutz; Elmar Pfeffermann; Peter Predehl; Heike Soltau; Lothar Strueder

doi:10.1117/12.551505

29 September 2004 CCD-detector development for the DUO and the ROSITA missions

Norbert Meidinger, Stefan Bonerz, Jakob Englhauser, Guenther Hasinger, Robert Hartmann, Sven Herrmann, Peter Holl, Guenther Kettenring, Nils Kimmel, Gerhard Lutz, Elmar Pfeffermann, Peter Predehl, Heike Soltau, Lothar Strueder

Author Affiliations +

Proceedings Volume 5501, High-Energy Detectors in Astronomy; (2004) https://doi.org/10.1117/12.551505
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

DUO and ROSITA are two future X-ray astronomy missions observing in the energy band from about 0.3 keV to 10 keV. While the NASA satellite DUO will scan selected areas of the X-ray sky with high sensitivity, the German ROSITA mission shall perform an all-sky survey. Both missions apply an array of seven Wolter telescopes with separated field of views and seven dedicated PN-CCD focal plane detectors. The focal plane detectors are a further development of the flight-proven PN-CCD applied for the XMM-Newton observatory. The advanced device, called 'frame store PN-CCD', is designed and fabricated in the semiconductor laboratory of the Max-Planck-Institute for extraterrestrial physics. An introduction into the detector concept and design are presented as well as the promising results which have been achieved with the prototype devices. This includes an overview about the performance of the PN-CCD and in detail the recent measurements with the detector. An example is the low energy response of the optimized photon entrance window with integrated optical light filter. As the CAMEX analog signal processor chip is a main component of the detector module, we describe its development status. Furthermore, we report about the application of the mesh experiment to the PN-CCD which allows for a study of the electric potential characteristics in the detector bulk, in particular in the charge transfer depth. The information is of great importance for an accurate knowledge about the drift of the generated signal electrons into the potential wells of the pixels.

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Norbert Meidinger, Stefan Bonerz, Jakob Englhauser, Guenther Hasinger, Robert Hartmann, Sven Herrmann, Peter Holl, Guenther Kettenring, Nils Kimmel, Gerhard Lutz, Elmar Pfeffermann, Peter Predehl, Heike Soltau, and Lothar Strueder "CCD-detector development for the DUO and the ROSITA missions", Proc. SPIE 5501, High-Energy Detectors in Astronomy, (29 September 2004); https://doi.org/10.1117/12.551505

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