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Proceedings Paper

The camera of the Microchannel X-ray telescope onboard the SVOM mission
Author(s): Aline Meuris; Frédéric Pinsard; Eric Doumayrou; Thierry Tourrette; Diego Götz; Mickael Carty; Modeste Donati; Luc Dumaye; Alain Goetschy; François Nico; Norbert Meidinger; Danilo Miessner; Karine Mercier
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Paper Abstract

The Microchannel X-Ray Telescope will be implemented on board the SVOM space mission to observe the afterglow of gamma-ray bursts and localize them with 2 arcmin precision. The optical system is based on microchannel plates assembling in Wolter-I configuration to focus the X-rays in the focal plane, like done for the MIXS telescope of the BepiColombo ESA mission. The sensor part is a 256 × 256 pixel pnCCD from the Max-Planck Institute for Extraterrestrial Physics for high resolution spectroscopy and high quantum efficiency over 0.2 – 10 keV energy range, based on the same technology and design as the eROSITA telescopes for the Russian-German SRG mission. CEA-Irfu (Saclay) is in charge of the design and the realization of the camera, including the focal plane, the calibration wheel, the front-end electronics, the structure housing for background shielding and the active cooling system. A prototype of the full detection chain and the acquisition system was set up. The paper presents the preliminary design of the electrical, mechanical and thermal architectures of the camera. It focuses on the fabrication and testing of the critical elements of the design and concludes on the on-going developments.

Paper Details

Date Published: 24 July 2014
PDF: 10 pages
Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91444Z (24 July 2014); doi: 10.1117/12.2055162
Show Author Affiliations
Aline Meuris, CEA-IRFU (France)
Frédéric Pinsard, CEA-IRFU (France)
Eric Doumayrou, CEA-IRFU (France)
Thierry Tourrette, CEA-IRFU (France)
Diego Götz, CEA-IRFU (France)
Mickael Carty, CEA-IRFU (France)
Modeste Donati, CEA-IRFU (France)
Luc Dumaye, CEA-IRFU (France)
Alain Goetschy, CEA-IRFU (France)
François Nico, CEA-IRFU (France)
Norbert Meidinger, Max-Planck-Institut für Extraterrestrische Physik (Germany)
Danilo Miessner, Max-Planck-Institut für Extraterrestrische Physik (Germany)
Karine Mercier, Ctr. National d'Études Spatiales (France)

Published in SPIE Proceedings Vol. 9144:
Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Jan-Willem A. den Herder; Mark Bautz, Editor(s)

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