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Proceedings Paper

Development of a prototype nickel optic for the Constellation-X hard x-ray telescope: III
Author(s): S. Romaine; S. Basso; R. J. Bruni; W. Burkert; O. Citterio; G. Conti; D. Engelhaupt; M. J. Freyberg; M. Ghigo; P. Gorenstein; M. Gubarev; G. Hartner; F. Mazzoleni; S. O'Dell; G. Pareschi; B. D. Ramsey; C. Speegle; D. Spiga
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Paper Abstract

The Constellation-X (Con-X) mission planned for launch in 2015, will feature an array of Hard X-ray telescopes (HXT) with a total collecting area greater than 1500 cm2 at 40 keV. Two technologies are being investigated for the optics of these telescopes, including multilayer coated Electroformed-Nickel-Replicated (ENR) shells. The attraction of the ENR process is that the resulting full-shell optics are inherently stable and offer the prospect of better angular resolution which results in lower background and higher instrument sensitivity. We are building a prototype HXT mirror module using an ENR process to fabricate the individual shells. This prototype consists of 5 shells with diameters ranging from 150 mm to 280 mm with a length of 426 mm. The innermost of these will be coated with iridium, while the remainder will be coated with graded d-spaced W/Si multilayers. Parts I and II of this work were presented at the SPIE meetings in 2003 and 2004. This paper presents a progress update and focuses on accomplishments during this past year. In particular, we will present results from full illumination X-ray tests of multilayer coated shells, taken at the MPE-Panter X-ray facility.

Paper Details

Date Published: 8 September 2005
PDF: 7 pages
Proc. SPIE 5900, Optics for EUV, X-Ray, and Gamma-Ray Astronomy II, 59000S (8 September 2005); doi: 10.1117/12.620438
Show Author Affiliations
S. Romaine, Harvard-Smithsonian Ctr. for Astrophysics (United States)
S. Basso, Istituto Nazionale di AstroFisica-Osservatorio Astronomico di Brera (Italy)
R. J. Bruni, Harvard-Smithsonian Ctr. for Astrophysics (United States)
W. Burkert, Max-Planck-Institut für extraterrestrische Physik (Germany)
O. Citterio, Istituto Nazionale di AstroFisica-Osservatorio Astronomico di Brera (Italy)
G. Conti, IASF-Sez. Milano (Italy)
D. Engelhaupt, Univ. of Alabama in Huntsville (United States)
M. J. Freyberg, Max-Planck-Institut für extraterrestrische Physik (Germany)
M. Ghigo, Istituto Nazionale di AstroFisica-Osservatorio Astronomico di Brera (Italy)
P. Gorenstein, Harvard-Smithsonian Ctr. for Astrophysics (United States)
M. Gubarev, Universities Space Research Association (United States)
G. Hartner, Max-Planck-Institut für extraterrestrische Physik (Germany)
F. Mazzoleni, Istituto Nazionale di AstroFisica-Osservatorio Astronomico di Brera (Italy)
S. O'Dell, NASA Marshall Space Flight Ctr. (United States)
G. Pareschi, Istituto Nazionale di AstroFisica-Osservatorio Astronomico di Brera (Italy)
B. D. Ramsey, NASA Marshall Space Flight Ctr. (United States)
C. Speegle, Raytheon-ITSS (United States)
D. Spiga, Istituto Nazionale di AstroFisica-Osservatorio Astronomico di Brera (Italy)


Published in SPIE Proceedings Vol. 5900:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy II
Oberto Citterio; Stephen L. O'Dell, Editor(s)

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