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Multilayer coated echelle transmission gratings for x-ray phase sensitive imaging

Wednesday, October 26, 2011 — Poster Session III

10:00 a.m. – Noon

Natcher Conference Center




  • S Lynch
  • N Morgan
  • C Kemble
  • E Bennett
  • X Xiao
  • H Wen


A current method for developing phase sensitive imaging of soft tissue samples uses high density transmission gratings. A grating design is proposed that uses an echelle, or staircase-like, pattern with multilayer metal deposition and angled x-ray transmission to produce higher grating density than is presently achievable. Two grating designs were fabricated and tested at APS synchrotron source and the results are presented.

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