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X-ray Phase-contrast imaging

Martin Bech

Universitetslektor

X-ray Phase-contrast imaging

Non-binary phase gratings for x-ray imaging with a compact Talbot interferometer

Författare

  • Andre Yaroshenko
  • Martin Bech
  • Guillaume Potdevin
  • Andreas Malecki
  • Thomas Biernath
  • Johannes Wolf
  • Arne Tapfer
  • Markus Schüttler
  • Jan Meiser
  • Danays Kunka
  • Maximilian Amberger
  • Juergen Mohr
  • Franz Pfeiffer

Summary, in English

X-ray imaging using a Talbot-Lau interferometer, consisting of three binary gratings, is a well-established approach to acquire x-ray phase-contrast and dark-field images with a polychromatic source. However, challenges in the production of high aspect ratio gratings limit the construction of a compact setup for high x-ray energies. In this study we consider the use of phase gratings with triangular-shaped structures in an x-ray interferometer and show that such gratings can yield high visibilities for significantly shorter propagation distances than conventional gratings with binary structures. The findings are supported by simulation and experimental results for both cases of a monochromatic and a polychromatic source.

Avdelning/ar

  • X-ray Phase Contrast
  • Medicinsk strålningsfysik, Lund

Publiceringsår

2014-01-13

Språk

Engelska

Sidor

56-547

Publikation/Tidskrift/Serie

Optics Express

Volym

22

Issue

1

Dokumenttyp

Artikel i tidskrift

Förlag

Optical Society of America

Ämne

  • Other Physics Topics
  • Radiology, Nuclear Medicine and Medical Imaging

Nyckelord

  • Computer Simulation
  • Computer-Aided Design
  • Equipment Design
  • Equipment Failure Analysis
  • Interferometry/instrumentation
  • Lighting/instrumentation
  • Models, Theoretical
  • Refractometry/instrumentation
  • X-Ray Diffraction/instrumentation

Status

Published

Forskningsgrupp

  • X-ray Phase Contrast

ISBN/ISSN/Övrigt

  • ISSN: 1094-4087