Journal
PHYSICAL REVIEW LETTERS
Volume 118, Issue 24, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.118.243902
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Funding
- UK Engineering and Physical Sciences Research Council [EP/I021884/1]
- Royal Academy of Engineering under the RAEng Research Fellowships scheme
- EPSRC [EP/M507970/1]
- EPSRC [EP/I021884/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/I021884/1] Funding Source: researchfish
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We present a multiaperture analyzer setup for performing x-ray phase contrast imaging in planar and three-dimensional modalities. The method is based on strongly structuring the x-ray beam with an amplitude modulator, before it reaches the sample, and on a multiaperture analyzing element before detection. A multislice representation of the sample is used to establish a quantitative relation between projection images and the corresponding three-dimensional distributions, leading to successful tomographic reconstruction. Sample absorption, phase, and scattering are retrieved from the measurement of five intensity projections. The method is tested on custom-built phantoms with synchrotron radiation: sample absorption and phase can be reliably retrieved also in combination with strong scatterers, simultaneously attaining high sensitivity and dynamic range.
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