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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 9 — May. 6, 2013
  • pp: 11187–11201

A simplified approach to quantitative coded aperture X-ray phase imaging

Peter R.T. Munro, Charlotte K. Hagen, Magdalena B. Szafraniec, and Alessandro Olivo  »View Author Affiliations


Optics Express, Vol. 21, Issue 9, pp. 11187-11201 (2013)
http://dx.doi.org/10.1364/OE.21.011187


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Abstract

We recently demonstrated how quantitative X-ray phase contrast imaging may be performed with laboratory sources using the coded aperture technique. This technique required the knowledge of system parameters such as, for example, the source focal spot size and distances between elements of the imaging system. The method also assumes that the absorbing regions of the apertures are perfectly absorbing. In this paper we demonstrate how quantitative imaging can be performed without knowledge of individual system parameters and with partially absorbing apertures. We also show that this method is analogous to that employed in analyser based imaging which uses the rocking curve of an analyser crystal.

© 2013 OSA

OCIS Codes
(110.7440) Imaging systems : X-ray imaging
(120.5050) Instrumentation, measurement, and metrology : Phase measurement

ToC Category:
X-ray Optics

History
Original Manuscript: December 7, 2012
Revised Manuscript: March 11, 2013
Manuscript Accepted: March 16, 2013
Published: April 30, 2013

Citation
Peter R.T. Munro, Charlotte K. Hagen, Magdalena B. Szafraniec, and Alessandro Olivo, "A simplified approach to quantitative coded aperture X-ray phase imaging," Opt. Express 21, 11187-11201 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-9-11187


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