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X-ray coherent diffraction imaging with an objective lens : Towards three-dimensional mapping of thick polycrystals

Pedersen, A. F. ; Chamard, V. ; Detlefs, C. ; Zhou, T. ; Carbone, D. LU and Poulsen, H. F. (2020) In Physical Review Research 2(3).
Abstract

We demonstrate an X-ray coherent imaging method that combines high spatial resolution with the ability to map grains within thick polycrystalline specimens. An X-ray objective serves to isolate an embedded grain. Iterative oversampling routines and Fourier synthesis are used to reconstruct the shape and strain field from the far-field intensity pattern. In a demonstration experiment a ∼500-nm Pt grain embedded in a polycrystalline Pt matrix is mapped in three dimensions without compromising the spatial resolution. No information on the pupil function of the lens is required and lens aberrations are not critical.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Research
volume
2
issue
3
article number
033031
publisher
American Physical Society
external identifiers
  • scopus:85091817167
ISSN
2643-1564
DOI
10.1103/PhysRevResearch.2.033031
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
id
d0d9afc1-1ee0-4334-9cad-a92c045a8d94
date added to LUP
2021-12-15 11:58:07
date last changed
2025-04-04 14:27:48
@article{d0d9afc1-1ee0-4334-9cad-a92c045a8d94,
  abstract     = {{<p>We demonstrate an X-ray coherent imaging method that combines high spatial resolution with the ability to map grains within thick polycrystalline specimens. An X-ray objective serves to isolate an embedded grain. Iterative oversampling routines and Fourier synthesis are used to reconstruct the shape and strain field from the far-field intensity pattern. In a demonstration experiment a ∼500-nm Pt grain embedded in a polycrystalline Pt matrix is mapped in three dimensions without compromising the spatial resolution. No information on the pupil function of the lens is required and lens aberrations are not critical.</p>}},
  author       = {{Pedersen, A. F. and Chamard, V. and Detlefs, C. and Zhou, T. and Carbone, D. and Poulsen, H. F.}},
  issn         = {{2643-1564}},
  language     = {{eng}},
  number       = {{3}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Research}},
  title        = {{X-ray coherent diffraction imaging with an objective lens : Towards three-dimensional mapping of thick polycrystals}},
  url          = {{http://dx.doi.org/10.1103/PhysRevResearch.2.033031}},
  doi          = {{10.1103/PhysRevResearch.2.033031}},
  volume       = {{2}},
  year         = {{2020}},
}