Limitations imposed by specimen phase gradients on the design of grating based x-ray phase contrast imaging systems
Applied Optics, Vol. 49, Issue 20, pp. 3860-3863 (2010)
http://dx.doi.org/10.1364/AO.49.003860
Enhanced HTML 
Acrobat PDF (368 KB)
Abstract
X-ray phase contrast imaging is a very promising technique that may lead to significant advancements in a variety of fields, perhaps most notably, medical imaging. The radiation physics group at University College London is currently developing an x-ray phase contrast imaging technique that works with laboratory x-ray sources. This system essentially measures the degree to which photons are refracted by regions of an imaged object. The amount of refraction that may be expected to be encountered in practice impacts strongly upon the design of the imaging system. In this paper, we derive an approximate expression between the properties of archetypal imaged objects encountered in practice and the resulting distribution of refracted photons. This is used to derive constraints governing the design of the system.
© 2010 Optical Society of America
OCIS Codes
(050.1960) Diffraction and gratings : Diffraction theory
(110.7440) Imaging systems : X-ray imaging
(340.7430) X-ray optics : X-ray coded apertures
ToC Category:
Diffraction and Gratings
History
Original Manuscript: April 8, 2010
Revised Manuscript: June 14, 2010
Manuscript Accepted: June 15, 2010
Published: July 2, 2010
Virtual Issues
Vol. 5, Iss. 11 Virtual Journal for Biomedical Optics
Citation
Peter R. T. Munro, Konstantin Ignatyev, Robert D. Speller, and Alessandro Olivo, "Limitations imposed by specimen phase gradients on the design of grating based x-ray phase contrast imaging systems," Appl. Opt. 49, 3860-3863 (2010)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-49-20-3860
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Photon folding for imaging in nonfocusing telescopes (AO)
- Non-iterative solution of the phase retrieval problem using a single diffraction measurement (OE)
- The relationship between wave and geometrical optics models of coded aperture type x-ray phase contrast imaging systems (OE)
- Source size and temporal coherence requirements of coded aperture type x-ray phase contrast imaging systems (OE)
- Index class apertures—a class of flexible coded aperture (AO)
Related Conference Papers
- Radiography with a Terawatt Laser γ-Source
- Radiography with a Terawatt Laser γ-Source
- Near-to-Far Field Spectral Evolution in Plasmonic Crystals
- Fundamental Mode in Index-Guided Microstructured Optical Fibers: Long Wavelength Properties
- Calculation of Power Density Directly from Diffraction Integrals
« Previous Article | Next Article »
OSA is a member of 