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Proceedings Paper

The x-ray mirrors for the EXIST/SXI telescope
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Paper Abstract

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.

Paper Details

Date Published: 29 July 2010
PDF: 9 pages
Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 77324C (29 July 2010); doi: 10.1117/12.857308
Show Author Affiliations
Stefano Basso, Osservatorio Astronomico di Brera (Italy)
Gianpiero Tagliaferri, Osservatorio Astronomico di Brera (Italy)
Lorenzo Natalucci, INAF - IASF Roma (Italy)
Giancarlo Parodi, BCV Progetti S.r.l. (Italy)
Gabriele E. Villa, INAF - IASF Milano (Italy)
Angela Bazzano, INAF - IASF Roma (Italy)
Patrizia A. Caraveo, INAF - IASF Milano (Italy)
Paolo Conconi, Osservatorio Astronomico di Brera (Italy)
Roberto Della Ceca, Osservatorio Astronomico di Brera (Italy)
Jonathan E. Grindlay, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Giovanni Pareschi, Osservatorio Astronomico di Brera (Italy)
Brian D. Ramsey, NASA Marshall Space Flight Ctr. (United States)
Pietro Ubertini, INAF - IASF Roma (Italy)
Michela C. A. Uslenghi, INAF - IASF Milano (Italy)

Published in SPIE Proceedings Vol. 7732:
Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray
Monique Arnaud; Stephen S. Murray; Tadayuki Takahashi, Editor(s)

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