29 July 2010 The wide-field imager for IXO: status and future activities
Author Affiliations +
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.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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, Jörn Wilms, "The wide-field imager for IXO: status and future activities", Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 77321I (29 July 2010); doi: 10.1117/12.856628; https://doi.org/10.1117/12.856628
PROCEEDINGS
9 PAGES


SHARE
KEYWORDS
Sensors

Field effect transistors

X-rays

Imaging systems

X-ray imaging

Electrons

Spectroscopy

RELATED CONTENT

Imaging spectrometers for future x-ray missions
Proceedings of SPIE (January 25 2002)
XEUS wide field imager first experimental results with the...
Proceedings of SPIE (February 03 2004)
The IXO wide-field imager
Proceedings of SPIE (July 16 2010)
Active pixel sensors for imaging x-ray spectrometers
Proceedings of SPIE (March 11 2003)

Back to Top