Fabrication of X-ray absorption grating using an ultracentrifuge machine

We propose a novel approach to fabricate hard-X-ray optics using an ultracentrifuge machine. As a demonstration, we fabricated an X-ray absorption grating made of gold with a pitch of 30 m and an effective depth of 44 m in 67 m depth grooves [a filling rate of 65%, as same as the filling rate of ran...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 2019-08, Vol.58 (8), p.88003
Main Authors: Hojo, Daisuke, Kamezawa, Chika, Hyodo, Kazuyuki, Yashiro, Wataru
Format: Article
Language:English
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Summary:We propose a novel approach to fabricate hard-X-ray optics using an ultracentrifuge machine. As a demonstration, we fabricated an X-ray absorption grating made of gold with a pitch of 30 m and an effective depth of 44 m in 67 m depth grooves [a filling rate of 65%, as same as the filling rate of random packing for equal-sized spheres in a jammed state (64%)]. Our approach is cost-efficient and has a high production-rate and material-selectivity, and will be widely used for fabricating optics not only for X-rays but also neutrons in the near future.
ISSN:0021-4922
1347-4065
DOI:10.7567/1347-4065/ab3354