Controlling gravitational distortions in long synchrotron x-ray mirrors

Gene E. Ice

doi:10.1117/12.259868

22 November 1996 Controlling gravitational distortions in long synchrotron x-ray mirrors

Gene E. Ice

Proceedings Volume 2856, Optics for High-Brightness Synchrotron Radiation Beamlines II; (1996) https://doi.org/10.1117/12.259868
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

X-ray mirrors for synchrotron radiation beamlines must have low roughness and small figure errors to preserve source brilliance. Gravitationally-induced slope errors can be particularly detrimental for large vertically-deflecting mirrors on ultra-high brilliance third-generation beamlines. Although mirror support can greatly reduce gravitational distortions, in some cases mirror support can complicate dynamic bending. We discuss techniques for controlling gravitational distortions with particular emphasis on removing gravitational distortions from simple bendable mirrors. We also show that in beamlines with parallel mirrors, gravitation induced slope errors can be cancelled through the mirror pair; gravitation induced slope errors of the first mirror can be cancelled by matching slope errors with opposite signs on the second mirror.

Citation Download Citation

Gene E. Ice "Controlling gravitational distortions in long synchrotron x-ray mirrors", Proc. SPIE 2856, Optics for High-Brightness Synchrotron Radiation Beamlines II, (22 November 1996); https://doi.org/10.1117/12.259868

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