skip to main content

DOE PAGESDOE PAGES

Title: X-RAY IMAGING Achieving the third dimension using coherence

X-ray imaging is extensively used in medical and materials science. Traditionally, the depth dimension is obtained by turning the sample to gain different views. The famous penetrating properties of X-rays mean that projection views of the subject sample can be readily obtained in the linear absorption regime. 180 degrees of projections can then be combined using computed tomography (CT) methods to obtain a full 3D image, a technique extensively used in medical imaging. In the work now presented in Nature Materials, Stephan Hruszkewycz and colleagues have demonstrated genuine 3D imaging by a new method called 3D Bragg projection ptychography1. Our approach combines the 'side view' capability of using Bragg diffraction from a crystalline sample with the coherence capabilities of ptychography. Thus, it results in a 3D image from a 2D raster scan of a coherent beam across a sample that does not have to be rotated.
Authors:
 [1] ;  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States); London Centre for Nanotechnology, London (United Kingdom)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
BNL-113299-2016-JA
Journal ID: ISSN 1476-1122; R&D Project: PO011; KC0201060
Grant/Contract Number:
SC0012704
Type:
Accepted Manuscript
Journal Name:
Nature Materials
Additional Journal Information:
Journal Volume: 16; Journal ID: ISSN 1476-1122
Publisher:
Nature Publishing Group
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1344222