The Microchannel X-ray Telescope status

摘要

We present design status of the Microchannel X-ray Telescope, the focussing X-ray telescope on board the Sino-French SVOM mission dedicated to Gamma-Ray Bursts. Its optical design is based on square micro-pore optics (MPOs) in a Lobster-Eye configuration. The optics will be coupled to a low-noise pnCCD sensitive in the 0.2-10 keV energy range. With an expected point spread function of 4.5 arc min (FWHM) and an estimated sensitivity adequate to detect all the afterglows of the SVOM GRBs, MXT will be able to provide error boxes smaller than 60 (90% c.l.) arc sec after five minutes of observation.