8 September 2005 Development of a prototype nickel optic for the Constellation-X hard x-ray telescope: III
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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.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
S. Romaine, S. Romaine, S. Basso, S. Basso, R. J. Bruni, R. J. Bruni, W. Burkert, W. Burkert, O. Citterio, O. Citterio, G. Conti, G. Conti, D. Engelhaupt, D. Engelhaupt, M. J. Freyberg, M. J. Freyberg, M. Ghigo, M. Ghigo, P. Gorenstein, P. Gorenstein, M. Gubarev, M. Gubarev, G. Hartner, G. Hartner, F. Mazzoleni, F. Mazzoleni, S. O'Dell, S. O'Dell, G. Pareschi, G. Pareschi, B. D. Ramsey, B. D. Ramsey, C. Speegle, C. Speegle, D. Spiga, D. Spiga, "Development of a prototype nickel optic for the Constellation-X hard x-ray telescope: III", Proc. SPIE 5900, Optics for EUV, X-Ray, and Gamma-Ray Astronomy II, 59000S (8 September 2005); doi: 10.1117/12.620438; https://doi.org/10.1117/12.620438

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