The Microchannel X-Ray Telescope (MXT) is part of the Sino French SVOM mission mainly dedicated to Gamma-Ray Bursts (GRBs). MXT combines a “lobster-eye” focusing X-ray micro-pore optic with a pnCCD detector operating from 0.1 to 10 keV. A stable structure made of carbon fiber reinforced polymer (CFRP) and titanium connects the two parts and provides the interfaces with the satellite. After a short description of the instrument, this paper first presents the alignment process and the measurement of the line of sight (LOS) at MPEs PANTER facility in Germany. Then we focus on the prediction of the in-orbit LOS stability combining thermos-elastic simulations and dedicated measurements.
The SVOM (Space-based multi-band astronomical Variable Objects Monitor) French-Chinese mission is dedicated to the detection, localization and study of Gamma Ray Bursts (GRBs) and other high-energy transient phenomena. We first present the general description of the French payload composed of the ECLAIRs instrument, dedicated to GRB detection and localization and the MXT instrument, dedicated to GRB follow-up observation in soft X-ray band. Then the paper describes more in detail the design and the performances of the MXT instrument, finally a status of MXT development will be given.
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