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Proceedings Paper

Thin glass shell oriented to wide field x-ray telescope
Author(s): M. M. Civitani; O. Citterio; S. Campana; P. Conconi; E. Mattaini; G. Pareschi; G. Tagliaferri; G. Parodi; V. Burwitz; G. D. Hartner; J. Arnold; S. Schuler; H. Combrinck; R. Freeman; R. Morton; P. Simpson; D. Walker
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Paper Abstract

The next generation wide-field X-ray telescope (WFXT), to be implemented beyond eRosita and proposed within the NASA RFI call 2011, requires an angular resolution of less than 10 arcsec (with goal of 5”) constant across a wide field of view (1 deg2). To achieve this requirement the design is based on nested modified grazing incidence Wolter-I mirrors with polynomial profiles. Our goals in terms of mass and stiffness can be meet with the use of fused silica glass, a wellknown material with good thermo-mechanical properties and polishability characteristics, together with an innovative polishing approach. Here we present the X-ray calibration results obtained for a prototypal shell tested in fullillumination mode at the Panter/MPE facility.

Paper Details

Date Published: 27 September 2012
PDF: 13 pages
Proc. SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 84430Q (27 September 2012); doi: 10.1117/12.925906
Show Author Affiliations
M. M. Civitani, INAF, Osservatorio Astronomico di Brera (Italy)
O. Citterio, INAF, Osservatorio Astronomico di Brera (Italy)
S. Campana, INAF, Osservatorio Astronomico di Brera (Italy)
P. Conconi, INAF, Osservatorio Astronomico di Brera (Italy)
E. Mattaini, INAF, Osservatorio Astronomico di Brera (Italy)
INAF/IASF Milano (Italy)
G. Pareschi, INAF, Osservatorio Astronomico di Brera (Italy)
G. Tagliaferri, INAF, Osservatorio Astronomico di Brera (Italy)
G. Parodi, BCV Progetti S.r.l. (Italy)
V. Burwitz, Max-Planck-Institut für extraterrestrische Physik (Germany)
G. D. Hartner, Max-Planck-Institut für extraterrestrische Physik (Germany)
J. Arnold, LT Ultra Precision Technology GmbH (Germany)
S. Schuler, LT Ultra Precision Technology GmbH (Germany)
H. Combrinck, Zeeko Ltd. (United Kingdom)
R. Freeman, Zeeko Ltd. (United Kingdom)
R. Morton, Zeeko Ltd. (United Kingdom)
P. Simpson, Zeeko Ltd. (United Kingdom)
D. Walker, Zeeko Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 8443:
Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Stephen S. Murray; Jan-Willem A. den Herder, Editor(s)

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