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Pablo Villanueva Perez

Senior lecturer

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Signal-to-noise criterion for free-propagation imaging techniques at free-electron lasers and synchrotrons

Author

  • Pablo Villanueva-Perez
  • Bill Pedrini
  • Rajmund Mokso
  • Manuel Guizar-Sicairos
  • Filippo Arcadu
  • Marco Stampanoni

Summary, in English

We propose a signal-to-noise criterion which predicts whether a feature of a given size and scattering strength, placed inside a larger object, can be retrieved with two common X-ray imaging techniques: coherent diffraction imaging and projection microscopy. This criterion, based on how efficiently these techniques detect the scattered photons and validated through simulations, shows in general that projection microscopy can resolve smaller phase differences and features than coherent diffraction imaging. Our criterion can be used to design optimized imaging experiments and perform feasibility studies for sensitive biological materials in free-electron lasers, where the number of photons per pulse is limited, or in synchrotron experiments, for both techniques.

Department/s

  • MAX IV Laboratory

Publishing year

2016-02-22

Language

English

Pages

3189-3201

Publication/Series

Optics Express

Volume

24

Issue

4

Document type

Journal article

Publisher

Optical Society of America

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1094-4087