Multimodal hard X‐ray imaging of a mammography phantom at a compact synchrotron light source |
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Authors: | Simone Schleede Martin Bech Klaus Achterhold Guillaume Potdevin Martin Gifford Rod Loewen Cecile Limborg Ronald Ruth Franz Pfeiffer |
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Abstract: | The Compact Light Source is a miniature synchrotron producing X‐rays at the interaction point of a counter‐propagating laser pulse and electron bunch through the process of inverse Compton scattering. The small transverse size of the luminous region yields a highly coherent beam with an angular divergence of a few milliradians. The intrinsic monochromaticity and coherence of the produced X‐rays can be exploited in high‐sensitivity differential phase‐contrast imaging with a grating‐based interferometer. Here, the first multimodal X‐ray imaging experiments at the Compact Light Source at a clinically compatible X‐ray energy of 21 keV are reported. Dose‐compatible measurements of a mammography phantom clearly demonstrate an increase in contrast attainable through differential phase and dark‐field imaging over conventional attenuation‐based projections. |
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Keywords: | medical X‐ray imaging phase contrast inverse Compton X‐rays |
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