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Proceedings Paper

Elastic bending and water cooling strategies for producing high-quality synchrotron radiation mirrors in silicon
Author(s): James H. Underwood; Phillip J. Batson; H. Raul Beguiristain; Eric M. Gullikson
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Paper Abstract

Single crystal silicon has become readily obtainable and relatively inexpensive as a result of the production facilities set up to serve the semiconductor industry. It also has desirable properties for x-ray mirrors; it can be polished to a high degree of smoothness, has good mechanical properties, and high thermal conductivity. Polycrystalline silicon, which has greater mechanical strength, is also available. For these reasons we have used silicon mirrors exclusively at two bending magnet beamlines and one undulator beamline at the Advanced Light Source. We describe here two implementations of silicon mirrors: (1) a fixed radius design for high heat loads, which is side cooled by contacting to a water cooled block with Ga-In eutectic, and (2) designs in which a variable radius and/or an elliptical mirror figure are achieved by elastically bending a flat strip of the appropriate cross-sectional profile. Computed and measured performance figures are presented for each case.

Paper Details

Date Published: 1 November 1997
PDF: 8 pages
Proc. SPIE 3152, Materials, Manufacturing, and Measurement for Synchrotron Radiation Mirrors, (1 November 1997); doi: 10.1117/12.295550
Show Author Affiliations
James H. Underwood, Lawrence Berkeley National Lab. (United States)
Phillip J. Batson, Lawrence Berkeley National Lab. (United States)
H. Raul Beguiristain, Lawrence Berkeley National Lab. (United States)
Eric M. Gullikson, Lawrence Berkeley National Lab. (United States)


Published in SPIE Proceedings Vol. 3152:
Materials, Manufacturing, and Measurement for Synchrotron Radiation Mirrors
Peter Z. Takacs; Thomas W. Tonnessen, Editor(s)

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