The IXO wide-field imager

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

doi:10.1117/12.857432

16 July 2010 The IXO wide-field imager

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

Author Affiliations +

Proceedings Volume 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV; 77420T (2010) https://doi.org/10.1117/12.857432
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

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.

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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, and Giulio De Vita "The IXO wide-field imager", Proc. SPIE 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV, 77420T (16 July 2010); https://doi.org/10.1117/12.857432

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