F. Elarnaut
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View article: Sparse interleaved sampling for high resolution focal construct geometry X-ray tomography
Sparse interleaved sampling for high resolution focal construct geometry X-ray tomography Open
We demonstrate interleaved sampling by multiplexing conical subshells within the tomosynthesis and raster scanning a phantom through a 150 kV shell X-ray beam. Each view comprises pixels sampled on a regular 1 mm grid, which is then upscal…
View article: Combined X-ray diffraction and absorption tomography using a conical shell beam
Combined X-ray diffraction and absorption tomography using a conical shell beam Open
We combine diffraction and absorption tomography by raster scanning samples through a hollow cone of pseudo monochromatic X-rays with a mean energy of 58.4 keV. A single image intensifier takes 90x90 (x,y) snapshots during the scan. We dem…
View article: Confocal energy-dispersive X-ray diffraction tomography employing a conical shell beam
Confocal energy-dispersive X-ray diffraction tomography employing a conical shell beam Open
We introduce a new high-energy X-ray diffraction tomography technique for volumetric materials characterization. In this method, a conical shell beam is raster scanned through the samples. A central aperture optically couples the diffracte…
View article: Sporadic absorption tomography using a conical shell X-ray beam
Sporadic absorption tomography using a conical shell X-ray beam Open
We demonstrate tomography by measuring a sporadic sequence of ring shaped projections collected during a translational scan. We show that projections using 10% sampling may be used to construct optical sections with peak signal-to-noise ra…
View article: X-ray absorption tomography employing a conical shell beam
X-ray absorption tomography employing a conical shell beam Open
We demonstrate depth-resolved absorption imaging by scanning an object through a conical shell of X-rays. We measure ring shaped projections and apply tomosynthesis to extract optical sections at different axial focal plane positions. Thre…