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Proceedings Paper

PN-CCD detector for the European photon imaging camera on XMM
Author(s): Norbert Meidinger; Heinrich W. Braeuninger; Robert Hartmann; Gisela D. Hartner; Norbert Krause; Gerd Metzner; Elmar Pfeffermann; Martin Popp; Claus Reppin; J. Riedel; Diana Stoetter; Lothar Strueder; Joachim E. Truemper; Ulrich Weber; D. Hauff; Peter Holl; Josef Kemmer; S. Krisch; Heike Soltau; Christoph van Zanthier; Edgar Bihler; H. Boettcher; Eckhard Kendziorra; J. Kraemer; Bernhard Pflueger; Ruediger Staubert
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Paper Abstract

The pn-charge coupled device (pn-CCD) detector system was developed as the focal plane instrument of an x-ray telescope for the European photon imaging camera (EPIC) on the x-ray multi mirror (XMM) mission. The second cornerstone mission of the European Space Agency's Horizon 2000 plan performs high throughput imaging and spectroscopy of the x- ray sky in the domain of 0.1 keV - 15 keV. The pn-charge coupled device will also be used for a German x-ray astronomy satellite mission, called ABRIXAS (a broad-band imaging x-ray all-sky survey). While XMM will perform pointed observations. ABRIXAS will carry out an all sky survey with imaging telescopes. Both projects are planned to be launched in 1999. The homogeneous coherent sensitive area of the detector consists of a 6 cm by 6 cm large array of 12 pn-CCDs which are monolithically integrated on a single silicon wafer together with the first stage of amplification. The pn-CCD detector has been optimized for high-resolution x-ray spectroscopy and its performance is close to the theoretical limits given by the Fano noise. High quantum efficiency essential for the investigation of faint objects is accomplished over the whole energy range by a thin photon entrance window and a full sensitive detector thickness. A fast readout achieves excellent time resolution for the observation of pulsed x-ray sources and avoids pile- up for bright objects. The relevant performance parameters reflecting the state of the detector development are presented. The radiation hardness of the pn-CCD was verified for the ten year satellite mission. No significant increases in the thermally generated current, charge transfer losses and transfer noise occurred in the temperature range planned for detector operation. A correction of the signal charge losses, which occur already before irradiation in all types of charge coupled devices during the charge transfer to the anodes, is necessary to achieve the highest energy resolution of the detector. Methods to reduce the signal charge losses which were successfully tested, are described.

Paper Details

Date Published: 31 October 1996
PDF: 12 pages
Proc. SPIE 2808, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VII, (31 October 1996); doi: 10.1117/12.256022
Show Author Affiliations
Norbert Meidinger, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Heinrich W. Braeuninger, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Robert Hartmann, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Gisela D. Hartner, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Norbert Krause, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Gerd Metzner, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Elmar Pfeffermann, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Martin Popp, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Claus Reppin, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
J. Riedel, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Diana Stoetter, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Lothar Strueder, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Joachim E. Truemper, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Ulrich Weber, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
D. Hauff, Max-Planck-Institut fuer Physik (Germany)
Peter Holl, KETEK GmbH (Germany)
Josef Kemmer, KETEK GmbH (Germany)
S. Krisch, KETEK GmbH (Germany)
Heike Soltau, KETEK GmbH (Germany)
Christoph van Zanthier, KETEK GmbH (Germany)
Edgar Bihler, Univ. Tuebingen (Germany)
H. Boettcher, Univ. Tuebingen (Germany)
Eckhard Kendziorra, Univ. Tuebingen (Germany)
J. Kraemer, Univ. Tuebingen (Germany)
Bernhard Pflueger, Univ. Tuebingen (Germany)
Ruediger Staubert, Univ. Tuebingen (Germany)


Published in SPIE Proceedings Vol. 2808:
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VII
Oswald H. W. Siegmund; Mark A. Gummin, Editor(s)

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