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Proceedings Paper

The performance of thin shell adaptive optics for high angular resolution x-ray telescopes
Author(s): Charlotte Feldman; Richard Willingale; Carolyn Atkins; David Brooks; Tim Button; Peter Doel; Ady James; Carl Meggs; Daniel Rodriguez-Sanmartin; Andy Smith; Craig Theobald; Graham Willis
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Paper Abstract

The Smart X-ray Optics project is a UK based consortium of five institutions investigating active/adaptive X-ray optics for both large and small scale applications. The large scale application is aimed towards future X-ray telescopes for X-ray astronomy. The work presented here includes the modelling and the testing of the new large scale prototype thin shell optic which incorporates piezoelectric devices to enable the surface to be actively deformed aiming to achieve an angular resolution better than that currently available (e.g. Chandra 0.5"). As the shell is thin, a high degree of nesting is possible such that very large collecting areas can be provided in combination with the high angular resolution. The results from the testing campaign for this prototype in the X-ray beam line at the University of Leicester will be presented. The effect of the actuated piezoelectric devices on the detected image and software development for control of the system are discussed. Improvement of the Full width Half Maximum of the focus spot of up to 25% was seen but as yet this has not been completed in a controlled way. The surface figure achieved with a given set of voltages is stable, but an apparent interaction or coupling between the piezoelectric devices was detected and is still unexplained.

Paper Details

Date Published: 1 September 2010
PDF: 10 pages
Proc. SPIE 7803, Adaptive X-Ray Optics, 78030N (1 September 2010); doi: 10.1117/12.858821
Show Author Affiliations
Charlotte Feldman, Univ. of Leicester (United Kingdom)
Richard Willingale, Univ. of Leicester (United Kingdom)
Carolyn Atkins, Univ. College London (United Kingdom)
David Brooks, Univ. College London (United Kingdom)
Tim Button, The Univ. of Birmingham (United Kingdom)
Peter Doel, Univ. College London (United Kingdom)
Ady James, Mullard Space Science Lab., Univ. College London (United Kingdom)
Carl Meggs, The Univ. of Birmingham (United Kingdom)
Daniel Rodriguez-Sanmartin, The Univ. of Birmingham (United Kingdom)
Andy Smith, STFC-Daresbury Lab. (United Kingdom)
Craig Theobald, Mullard Space Science Lab., Univ. College London (United Kingdom)
Graham Willis, Mullard Space Science Lab., Univ. College London (United Kingdom)

Published in SPIE Proceedings Vol. 7803:
Adaptive X-Ray Optics
Ali M. Khounsary; Stephen L. O'Dell; Sergio R. Restaino, Editor(s)

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