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Proceedings Paper

Water-cooled crystal and multilayer optics for a wiggler beamline
Author(s): Karl W. Smolenski; Randall L. Headrick; Qun Shen; Brian Carroll; Ali M. Khounsary; Chian Liu; Albert T. Macrander
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Paper Abstract

A set of internally water-cooled multilayers were fabricated for the double crystal monochromator of the A2 wiggler beamline at CHESS. With over 3 kW total deposited on the first multilayer, conventional contact cooled multilayers proved unable to cope with the incident heat load. Cooled silicon substrates were fabricated with internal water cooling channels to reduce or eliminate thermal distortion. The highly polished top surfaces were coated with a sputtered W/C or W/B4C multilayer film deposited at the Advanced Photon Source and Osmic, Inc. respectively. Measured reflectivities over 60% and bandwidths of 1.3 - 1.8% were obtained. Results to beam currents of 250 mA show the effectiveness of the internal cooling design and have provided x-ray fluxes of 1 X 1013 photons/sec/mm2.

Paper Details

Date Published: 11 December 1998
PDF: 5 pages
Proc. SPIE 3448, Crystal and Multilayer Optics, (11 December 1998);
Show Author Affiliations
Karl W. Smolenski, Cornell Univ. (United States)
Randall L. Headrick, Cornell Univ. (United States)
Qun Shen, Cornell Univ. (United States)
Brian Carroll, Cornell Univ. (United States)
Ali M. Khounsary, Argonne National Lab. (United States)
Chian Liu, Argonne National Lab. (United States)
Albert T. Macrander, Argonne National Lab. (United States)

Published in SPIE Proceedings Vol. 3448:
Crystal and Multilayer Optics
Albert T. Macrander; Andreas K. Freund; Tetsuya Ishikawa; Dennis M. Mills, Editor(s)

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