Progress on the fabrication of high resolution and lightweight monocrystalline silicon x-ray mirrors

Raul E. Riveros; Michael P. Biskach; Kim D. Allgood; James R. Mazzarella; Marton V. Sharpe; William W. Zhang

doi:10.1117/12.2234215

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18 July 2016 Progress on the fabrication of high resolution and lightweight monocrystalline silicon x-ray mirrors

Raul E. Riveros, Michael P. Biskach, Kim D. Allgood, James R. Mazzarella, Marton V. Sharpe, William W. Zhang

Author Affiliations +

Proceedings Volume 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray; 990521 (2016) https://doi.org/10.1117/12.2234215
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

Monocrystalline silicon is an excellent X-ray mirror substrate material due to its high stiffness, low density, high thermal conductivity, zero internal stress, and commercial availability. Our work at NASA Goddard Space Flight Center focuses on identifying and developing a manufacturing process to produce high resolution and lightweight X-ray mirror segments in a cost and time effective manner. Previous efforts focused on demonstrating the feasibility of cylindrical silicon mirror polishing and lightweighting. Present efforts are aimed towards producing true paraboloidal and hyperboloidal mirror surfaces on the lightweight silicon segments. This paper presents results from these recent investigations, including a mirror which features a surface quality sufficient for a 3 arcsecond telescope.

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Raul E. Riveros, Michael P. Biskach, Kim D. Allgood, James R. Mazzarella, Marton V. Sharpe, and William W. Zhang "Progress on the fabrication of high resolution and lightweight monocrystalline silicon x-ray mirrors", Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 990521 (18 July 2016); https://doi.org/10.1117/12.2234215

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