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Proceedings Paper

Magnetic smart material application to adaptive x-ray optics
Author(s): M. P. Ulmer; Michael E. Graham; Semyon Vaynman; J. Cao; Peter Z. Takacs
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Paper Abstract

We discuss a technique of shape modification that can be applied to thin walled (~100-400 micron thickness) electroformed replicated optics or slumped glass optics to improve the near net shape of the mirror as well as the midfrequency ripple. The process involves sputter deposition of a magnetic smart material (MSM) film onto a permanently magnetic material. The MSM material exhibits strains about 400 times stronger than ordinary ferromagnetic materials. The deformation process involves a magnetic write head which traverses the surface, and under the guidance of active metrology feedback, locally magnetizes the surface to impart strain where needed. Designs and basic concepts as applied to space borne X-ray optics will be described.

Paper Details

Date Published: 25 August 2010
PDF: 11 pages
Proc. SPIE 7803, Adaptive X-Ray Optics, 780309 (25 August 2010); doi: 10.1117/12.860054
Show Author Affiliations
M. P. Ulmer, Northwestern Univ. (United States)
Michael E. Graham, Northwestern Univ. (United States)
Semyon Vaynman, Northwestern Univ. (United States)
J. Cao, Northwestern Univ. (United States)
Peter Z. Takacs, Brookhaven National Lab. (United States)

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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