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Proceedings Paper

Active microstructured arrays for x-ray optics
Author(s): Alan Michette; Tim Button; Camelia Dunare; Charlotte Feldman; Melvyn Folkard; David Hart; Chris McFaul; Graeme R. Morrison; William Parkes; Sławka Pfauntsch; A. Keith Powell; Daniel Rodriguez-Sanmartin; Shahin Sahraei; Tom Stevenson; Boris Vojnovic; Richard Willingale; Dou Zhang
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Paper Abstract

The UK Smart X-Ray Optics programme is developing the techniques required to both enhance the performance of existing X-ray systems, such as X-ray telescopes, while also extending the utility of X-ray optics to a broader class of scientific investigation. The approach requires the control of the inherent aberrations of X-ray systems using an active/adaptive method. One of the technologies proposed to achieve this is micro-structured optical arrays, which use grazing incidence reflection through consecutive aligned arrays of channels. Although such arrays are similar in concept to polycapillary and microchannel plate optics, they are more flexible. Bending the arrays allows variable focal length, while flexing parts of them provides adaptive or active systems. Custom configurations can be designed, using ray tracing and finite element analysis, for applications from sub-keV to several-keV X-rays. The channels may be made using deep silicon etching, which can provide appropriate aspect ratios, and flexed using piezo actuators. An exemplar application will be in the micro-probing of biological cells and tissue samples using Ti Kα radiation (4.5 keV) in studies related to radiation induced cancers.

Paper Details

Date Published: 20 September 2007
PDF: 12 pages
Proc. SPIE 6705, Advances in X-Ray/EUV Optics and Components II, 670502 (20 September 2007); doi: 10.1117/12.735500
Show Author Affiliations
Alan Michette, King's College London (United Kingdom)
Tim Button, Univ. of Birmingham (United Kingdom)
Camelia Dunare, Univ. of Edinburgh (United Kingdom)
Charlotte Feldman, Univ. of Leicester (United Kingdom)
Melvyn Folkard, Gray Cancer Institute, Mount Vernon Hospital (United Kingdom)
David Hart, Mount Vernon Hospital (United Kingdom)
Chris McFaul, King's College London (United Kingdom)
Graeme R. Morrison, King's College London (United Kingdom)
William Parkes, Univ. of Edinburgh (United Kingdom)
Sławka Pfauntsch, King's College London (United Kingdom)
A. Keith Powell, King's College London (United Kingdom)
Daniel Rodriguez-Sanmartin, The Univ. of Birmingham (United Kingdom)
Shahin Sahraei, King's College London (United Kingdom)
Tom Stevenson, Univ. of Edinburgh (United Kingdom)
Boris Vojnovic, Gray Cancer Institute (United Kingdom)
Richard Willingale, Univ. of Leicester (United Kingdom)
Dou Zhang, Univ. of Birmingham (United Kingdom)

Published in SPIE Proceedings Vol. 6705:
Advances in X-Ray/EUV Optics and Components II
Ali M. Khounsary; Christian Morawe; Shunji Goto, Editor(s)

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