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Proceedings Paper

Open-faced z-shaped channel-cut x-ray monochromator
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Paper Abstract

Channel-cut monochromators can be easily incorporated in high-resolution image techniques. However, polishing on the inner diffracting surfaces is difficult because of blockage by the opposite face. To address this difficulty, an open-faced monolithic monochromator has been designed, produced and tested using x-rays at the Advanced Photon Source (APS). The open-faced channel cut has a “Z”-shape geometry with a hole in the mid section to allow passage of the diffracted beam. The open geometry allowed chemical mechanical polishing so that an optically smooth finish on both surfaces was achieved. The high-resolution x-ray imaging and topography measurements revealed that the new design introduces significantly less distortions in the phase-contrast images compared with conventional channel-cut monochromators produced using etching alone.

Paper Details

Date Published: 3 November 2004
PDF: 6 pages
Proc. SPIE 5537, X-Ray Sources and Optics, (3 November 2004); doi: 10.1117/12.562377
Show Author Affiliations
Ruben Khachatryan, Argonne National Lab. (United States)
Andrei Tkachuk, Argonne National Lab. (United States)
Youg S. Chu, Argonne National Lab. (United States)
Jun Qian, Argonne National Lab. (United States)
Albert T. Macrander, Argonne National Lab. (United States)

Published in SPIE Proceedings Vol. 5537:
X-Ray Sources and Optics
Carolyn A. MacDonald; Albert T. Macrander; Tetsuya Ishikawa; Christian Morawe; James L. Wood, Editor(s)

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