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Proceedings Paper

Sagittal crystal focusing of undulator radiation with high-heat-load inclined crystals
Author(s): Gene E. Ice; Cullie J. Sparks
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Paper Abstract

Sagittal focusing of undulator radiation is shown to be compatible with the proposed inclined double-crystal monochromator geometry for heat load reduction. The focusing aberrations are shown to be negligible for typical undulator-beam divergences over a range of magnifications from 1:2 to 6:1 and energies from 3 to 40 keV. The inclined geometry reduces the required sagittal curvature of the focusing crystal compared to focusing with conventional symmetric crystals; hence, focusing is possible at higher X-ray energies and with less anticlastic bending. In addition, anticlastic stiffening ribs project a smaller footprint to the beam so that the achievable focal spot size is potentially better than with conventional symmetrically cut crystals.

Paper Details

Date Published: 20 January 1993
PDF: 7 pages
Proc. SPIE 1740, Optics for High-Brightness Synchrotron Radiation Beamlines, (20 January 1993); doi: 10.1117/12.138701
Show Author Affiliations
Gene E. Ice, Oak Ridge National Lab. (United States)
Cullie J. Sparks, Oak Ridge National Lab. (United States)

Published in SPIE Proceedings Vol. 1740:
Optics for High-Brightness Synchrotron Radiation Beamlines
John R. Arthur, Editor(s)

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