Abstract
A method is presented for quantitative phase-contrast tomography using unfiltered radiation from a small polychromatic source. The three-dimensional distribution of complex refractive index in a monomorphous object is reconstructed given a single projection image per view angle. The reconstruction algorithm is achromatic and stable with respect to high-spatial-frequency noise, in contrast to conventional tomography. The density distribution in a test sample was accurately reconstructed from polychromatic phase-contrast data collected with a point-projection x-ray microscope.
Original language | English |
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Article number | 045804 |
Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
Volume | 76 |
Issue number | 4 |
DOIs | |
Publication status | Published - 24 Oct 2007 |
Externally published | Yes |