Inclusion of coherence in Monte Carlo models for simulation of x-ray phase contrast imaging

Silvia Cipiccia, Fabio Vittoria, Maria Weikum, Alessandro Olivo, Dino Jaroszynski

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Interest in phase contrast imaging methods based on electromagnetic wave coherence has increased significantly recently, particularly at X-ray energies. This is giving rise to a demand for effective simulation methods. Coherent imaging approaches are usually based on wave optics, which require significant computational resources, particularly for producing 2D images. Monte Carlo (MC) methods, used to track individual particles/photons for particle physics, are not considered appropriate for describing coherence effects. Previous preliminary work has evaluated the possibility of incorporating coherence in Monte Carlo codes.
However, in this paper, we present the implementation of refraction in a model that is based on time of flight calculations and the Huygens-Fresnel principle, which allow reproducing the formation of phase contrast images in partially and fully coherent experimental conditions. The model is implemented in the FLUKA Monte Carlo code and X-ray phase contrast imaging simulations are compared with experiments and wave optics calculations.
LanguageEnglish
Pages23480–23488
Number of pages9
JournalOptics Express
Volume22
Issue number19
DOIs
Publication statusPublished - 18 Sep 2014

Fingerprint

phase contrast
inclusions
optics
particle tracks
x rays
simulation
Monte Carlo method
refraction
resources
electromagnetic radiation
physics
photons
energy

Keywords

  • x-ray phase contrast
  • Monte Carlo
  • coherence

Cite this

Cipiccia, Silvia ; Vittoria, Fabio ; Weikum, Maria ; Olivo, Alessandro ; Jaroszynski, Dino. / Inclusion of coherence in Monte Carlo models for simulation of x-ray phase contrast imaging. In: Optics Express. 2014 ; Vol. 22, No. 19. pp. 23480–23488.
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Inclusion of coherence in Monte Carlo models for simulation of x-ray phase contrast imaging. / Cipiccia, Silvia; Vittoria, Fabio; Weikum, Maria; Olivo, Alessandro; Jaroszynski, Dino.

In: Optics Express, Vol. 22, No. 19, 18.09.2014, p. 23480–23488.

Research output: Contribution to journalArticle

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