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The Wide-Field Imager for IXO: Status and future activities

Author(s)
Struder, Lothar; Aschauer, Florian; Herrmann, Sven; Lauf, Thomas; Meuris, Aline; Porro, Matteo; Reiffers, Jonas; de Vita, Giulio; Bautz, Mark W.; Bombelli, Luca; Fiorini, Carlo; Burrows, David; Fraser, George; Kendziorra, Eckhard; Santangelo, Andrea; Tenzer, Chris; Kuster, Markus; Lechner, Peter; Lutz, Gerhard; Majewski, Petra; Soltau, Heike; Richter, Rainer; Stefanescu, Alexander; Treis, Johannes; Tsunemi, Hiroshi; Wilms, Jorn; ... Show more Show less
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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 x 10 cm2 with a format of 1024 x 1024 pixels it will cover a field of view of 18 arcmin. The pixel size of 100 x 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 x 256 pixels are presented.
Date issued
2010-07
URI
http://hdl.handle.net/1721.1/64817
Department
MIT Kavli Institute for Astrophysics and Space Research
Journal
Proceedings of SPIE--the International Society for Optical Engineering; v.7732
Publisher
SPIE
Citation
Lothar Strüder, Florian Aschauer, Mark Bautz, Luca Bombelli, David Burrows, Carlo Fiorini, George Fraser, Sven Herrmann, Eckhard Kendziorra, Markus Kuster, Thomas Lauf, Peter Lechner, Gerhard Lutz, Petra Majewski, Aline Meuris, Matteo Porro, Jonas Reiffers, Rainer Richter, Andrea Santangelo, Heike Soltau, Alexander Stefanescu, Chris Tenzer, Johannes Treis, Hiroshi Tsunemi, Giulio de Vita and Jörn Wilms, "The wide-field imager for IXO: status and future activities", Proc. SPIE 7732, 77321I (2010); doi:10.1117/12.856628 © 2010 SPIE
Version: Final published version
ISSN
0277-786X

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