24 July 2014 The camera of the Microchannel X-ray telescope onboard the SVOM mission
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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.
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Aline Meuris, Aline Meuris, Frédéric Pinsard, Frédéric Pinsard, Eric Doumayrou, Eric Doumayrou, Thierry Tourrette, Thierry Tourrette, Diego Götz, Diego Götz, Mickael Carty, Mickael Carty, Modeste Donati, Modeste Donati, Luc Dumaye, Luc Dumaye, Alain Goetschy, Alain Goetschy, François Nico, François Nico, Norbert Meidinger, Norbert Meidinger, Danilo Miessner, Danilo Miessner, Karine Mercier, Karine Mercier, } "The camera of the Microchannel X-ray telescope onboard the SVOM mission", Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91444Z (24 July 2014); doi: 10.1117/12.2055162; https://doi.org/10.1117/12.2055162
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