Reconstruction of refractive index discontinuities from truncated phase-contrast tomography projections

Daxin Shi, Mark A. Anastasio, Xiaochuan Pan

Research output: Contribution to journalArticlepeer-review

Abstract

Propagation-based phase-contrast tomography is a noninterferometric imaging technique that can reconstruct the complex refractive index distribution of an object. To accomplish such a reconstruction using existing methods, however, there must be no truncation of the phase-contrast projection data in the detector planes at each tomographic view angle. We demonstrate that local tomography reconstruction theory can be applied for reconstruction of refractive index discontinuities in two-dimensional objects from truncated phase-contrast projections acquired in the near-Fresnel zone. Numerical results are presented to corroborate our theoretical assertions.

Original languageEnglish (US)
Article number034102
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume86
Issue number3
DOIs
StatePublished - Jan 17 2005
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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