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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 16 — Aug. 3, 2009
  • pp: 13541–13553

Signal-to-noise and radiation exposure considerations in conventional and diffraction x-ray microscopy

Xiaojing Huang, Huijie Miao, Jan Steinbrener, Johanna Nelson, David Shapiro, Andrew Stewart, Joshua Turner, and Chris Jacobsen  »View Author Affiliations

Optics Express, Vol. 17, Issue 16, pp. 13541-13553 (2009)

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Using a signal-to-noise ratio estimation based on correlations between multiple simulated images, we compare the dose efficiency of two soft x-ray imaging systems: incoherent brightfield imaging using zone plate optics in a transmission x-ray microscope (TXM), and x-ray diffraction microscopy (XDM) where an image is reconstructed from the far-field coherent diffraction pattern. In XDM one must computationally phase weak diffraction signals; in TXM one suffers signal losses due to the finite numerical aperture and efficiency of the optics. In simulations with objects representing isolated cells such as yeast, we find that XDM has the potential for delivering equivalent resolution images using fewer photons. This can be an important advantage for studying radiation-sensitive biological and soft matter specimens.

© 2009 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(110.4280) Imaging systems : Noise in imaging systems
(110.7440) Imaging systems : X-ray imaging
(110.3010) Imaging systems : Image reconstruction techniques

ToC Category:

Original Manuscript: June 24, 2009
Revised Manuscript: July 18, 2009
Manuscript Accepted: July 19, 2009
Published: July 23, 2009

Virtual Issues
Vol. 4, Iss. 10 Virtual Journal for Biomedical Optics

Xiaojing Huang, Huijie Miao, Jan Steinbrener, Johanna Nelson, David Shapiro, Andrew Stewart, Joshua Turner, and Chris Jacobsen, "Signal-to-noise and radiation exposure considerations in conventional and diffraction x-ray microscopy," Opt. Express 17, 13541-13553 (2009)

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