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Studies of operation modes for the ATHENA WFI detectors
Author(s): Annika Behrens; Robert Andritschke; Michael Bonholzer; Valentin Emberger; Günter Hauser; Norbert Meidinger; Johannes Müller-Seidlitz; Wolfgang Treberspurg
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Paper Abstract

The Wide Field Imager (WFI) is one of two instruments for ESA’s Athena X-ray observatory. It will employ DEPFET (depleted p-channel field effect transistor) active pixel technology to provide unprecedented spectroscopic and imaging capabilities over a broad energy band from 0.2 keV to 15 keV, with a large field of view of 40′ × 40′ . Using prototype detectors of various sizes we have started first tests of window mode operation, where only a subset of the full sensor array is being read out, leading to a higher frame rate for this area. We also investigated the possibility of operation at room temperature for a basic functionality test when cooling is not possible, e.g. on ground after integration on the satellite.

Paper Details

Date Published: 6 July 2018
PDF: 7 pages
Proc. SPIE 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray, 106994I (6 July 2018); doi: 10.1117/12.2314182
Show Author Affiliations
Annika Behrens, Max-Planck-Institut für extraterrestrische Physik (Germany)
Robert Andritschke, Max-Planck-Institut für extraterrestrische Physik (Germany)
Michael Bonholzer, Max-Planck-Institut für extraterrestrische Physik (Germany)
Valentin Emberger, Max-Planck-Institut für extraterrestrische Physik (Germany)
Günter Hauser, Max-Planck-Institut für extraterrestrische Physik (Germany)
Norbert Meidinger, Max-Planck-Institut für extraterrestrische Physik (Germany)
Johannes Müller-Seidlitz, Max-Planck-Institut für extraterrestrische Physik (Germany)
Wolfgang Treberspurg, Max-Planck-Institut für extraterrestrische Physik (Germany)


Published in SPIE Proceedings Vol. 10699:
Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray
Jan-Willem A. den Herder; Shouleh Nikzad; Kazuhiro Nakazawa, Editor(s)

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