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Proceedings Paper

The IXO wide-field imager
Author(s): Peter Lechner; Florian Aschauer; Luca Bombelli; Carlo Fiorini; Sven Herrmann; Thomas Lauf; Gerhard Lutz; Petra Majewski; Aline Meuris; Matteo Porro; Jonas Reiffers; Rainer Richter; Alexander Stefanescu; Lothar Strüder; Johannes Treis; Giulio De Vita
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Paper Abstract

The Wide Field Imager (WFI) of the International X-ray Observatory (IXO) is an X-ray imaging spectrometer based on a large monolithic DePFET (Depleted P-channel Field Effect Transistor) Active Pixel Sensor. Filling an area of 10 × 10 cm² with a format of 1024 × 1024 pixels it will cover a field of view of 18 arcmin. The pixel size of 100 × 100 μm² corresponds to a fivefold oversampling of the telescope's expected 5 arcsec point spread function. The WFI's basic DePFET structure combines the functionalities of sensor and integrated amplifier with nearly Fano-limited energy resolution and high efficiency from 100 eV to 15 keV. The development of dedicated control and amplifier ASICs allows for high frame rates up to 1 kHz and flexible readout modes. Results obtained with representative prototypes with a format of 256 × 256 pixels are presented.

Paper Details

Date Published: 16 July 2010
PDF: 10 pages
Proc. SPIE 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV, 77420T (16 July 2010); doi: 10.1117/12.857432
Show Author Affiliations
Peter Lechner, PNSensor GmbH (Germany)
Florian Aschauer, Max-Planck-Institut für extraterrestrische Physik (Germany)
Max-Planck-Institut Halbleiterlabor (Germany)
Luca Bombelli, Politecnico di Milano (Italy)
Carlo Fiorini, Politecnico di Milano (Italy)
Sven Herrmann, Max-Planck-Institut für extraterrestrische Physik (Germany)
Max-Planck-Institut Halbleiterlabor (Germany)
Thomas Lauf, Max-Planck-Institut für extraterrestrische Physik (Germany)
Max-Planck-Institut Halbleiterlabor (Germany)
Gerhard Lutz, PNSensor GmbH (Germany)
Petra Majewski, PNSensor GmbH (Germany)
Aline Meuris, Max-Planck-Institut für extraterrestrische Physik (Germany)
Max-Planck-Institut Halbleiterlabor (Germany)
Matteo Porro, Max-Planck-Institut für extraterrestrische Physik (Germany)
Max-Planck-Institut Halbleiterlabor (Germany)
Jonas Reiffers, Max-Planck-Institut für extraterrestrische Physik (Germany)
Max-Planck-Institut Halbleiterlabor (Germany)
Rainer Richter, Max-Planck-Institut für Physik (Germany)
Max-Planck-Institut Halbleiterlabor (Germany)
Alexander Stefanescu, Johannes Gutenberg Univ. Mainz (Germany)
Max-Planck-Institut Halbleiterlabor (Germany)
Lothar Strüder, Max-Planck-Institut für extraterrestrische Physik (Germany)
Max-Planck-Institut Halbleiterlabor (Germany)
Johannes Treis, Max-Planck-Institut für Sonnensystemforschung (Germany)
Max-Planck-Institut Halbleiterlabor (Germany)
Giulio De Vita, Max-Planck-Institut für extraterrestrische Physik (Germany)
Max-Planck-Institut Halbleiterlabor (Germany)


Published in SPIE Proceedings Vol. 7742:
High Energy, Optical, and Infrared Detectors for Astronomy IV
Andrew D. Holland; David A. Dorn, Editor(s)

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