15 July 2008 Future high-resolution x-ray telescope technologies: prototype fabrication methods and finite element analysis
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Abstract
The Smart X-ray Optics (SXO) project is a UK based consortium consisting of several institutions investigating the application of active/adaptive optics to both large and small scale grazing incidence x-ray optics. University College London presents work relating to the large scale x-ray optics that is geared towards the next generation of x-ray space telescopes. It is proposed that through the addition of piezoelectric actuators, an active x-ray telescope with a resolution better than that currently achieved (e.g. Chandra 0.5") could be realised. An immediate aim of the SXO project is to produce an operational active ellipsoidal segment prototype, with point-to- point focusing and with the intention of being tested at the University of Leicester's x-ray beam source. Work relating to the fabrication of the prototype will be presented, including shell replication via a nickel sulphamate electroforming process, piezoelectric actuators and prototype assembly and operation. Results from finite element analysis modelling will be discussed; these relate primarily to gravitational distortion effects and the plating tank electrostatics.
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Carolyn Atkins, Hongchang Wang, Peter Doel, David Brooks, Samantha Thompson, Charlotte Feldman, Richard Willingale, Tim Button, Daniel Rodriguez Sanmartin, Dou Zhang, Ady James, Craig Theobald, "Future high-resolution x-ray telescope technologies: prototype fabrication methods and finite element analysis", Proc. SPIE 7011, Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray, 70110X (15 July 2008); doi: 10.1117/12.787950; https://doi.org/10.1117/12.787950
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KEYWORDS
Prototyping

Actuators

Nickel

X-rays

X-ray optics

Finite element methods

X-ray telescopes

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