Fabrication of X-ray absorption grating using an ultracentrifuge machine

Daisuke Hojo, Chika Kamezawa, Kazuyuki Hyodo, Wataru Yashiro

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


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 μm and an effective depth of 44 μm in 67 μm 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.

Original languageEnglish
Article number088003
JournalJapanese journal of applied physics
Issue number8
Publication statusPublished - 2019

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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