Forward model for propagation-based X-ray phase contrast imaging in parallel- and conebeam geometry

Elisabeth R. Shanblatt, Yongjin Sung, Rajiv Gupta, Brandon J. Nelson, Shuai Leng, William Graves, Cynthia H. McCollough

Research output: Contribution to journalArticle

Abstract

We demonstrate a fast, flexible, and accurate paraxial wave propagation model to serve as a forward model for propagation-based X-ray phase contrast imaging (XPCI) in parallel-beam or cone-beam geometry. This model incorporates geometric cone-beam effects into the multi-slice beam propagation method. It enables rapid prototyping and is well suited to serve as a forward model for propagation-based X-ray phase contrast tomographic reconstructions. Furthermore, it is capable of modeling arbitrary objects, including those that are strongly or multi-scattering. Simulation studies were conducted to compare our model to other forward models in the X-ray regime, such as the Mie and full-wave Rytov solutions.

Original languageEnglish (US)
Pages (from-to)4504-4521
Number of pages18
JournalOptics Express
Volume27
Issue number4
DOIs
StatePublished - Jan 1 2019

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Shanblatt, E. R., Sung, Y., Gupta, R., Nelson, B. J., Leng, S., Graves, W., & McCollough, C. H. (2019). Forward model for propagation-based X-ray phase contrast imaging in parallel- and conebeam geometry. Optics Express, 27(4), 4504-4521. https://doi.org/10.1364/OE.27.004504