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29 July 2010 The x-ray mirrors for the EXIST/SXI telescope
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The Energetic X-ray Imaging Survey Telescope (EXIST) will continuously survey the full sky in scanning mode for 2- years followed by a 3-years pointing phase. The mission includes three instruments: a High Energy coded mask Telescope; a 1.1m aperture optical-IR Telescope; and a Soft X-ray Imager (SXI), sensitive in the 0.1-10 keV band. SXI is proposed as a contribution of ASI-Italy, fully developed by Italian institutes. Here we will present the optical and mechanical design of the SXI mirror module, that includes also a pre-collimator and a magnetic diverter to ensure a low background on the detector. In particular we will describe the mirror module characteristics in term of effective area, imaging capability, thermal requirement and mechanical properties. The current optical design foresees 26 shells providing an effective area comparable to one XMM-Newton mirror module up to 3 keV. The realization of these shells is based on the well-proven Nickel replication-process technology.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Stefano Basso, Gianpiero Tagliaferri, Lorenzo Natalucci, Giancarlo Parodi, Gabriele E. Villa, Angela Bazzano, Patrizia A. Caraveo, Paolo Conconi, Roberto Della Ceca, Jonathan E. Grindlay, Giovanni Pareschi, Brian D. Ramsey, Pietro Ubertini, and Michela C. A. Uslenghi "The x-ray mirrors for the EXIST/SXI telescope", Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 77324C (29 July 2010);


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