Image quality analysis for dual energy subtraction imaging with afemtosecond laser-based hard X-ray source |
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Authors: | Ichalalene Z Jiang Z Kieffer JC Dorchies F Krol A Chamberlain CC |
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Affiliation: | Telobs Corp., Que.; |
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Abstract: | We present a study of image quality for dual energy subtraction imaging using an iodinated contrast agent and a femtosecond laser-based hard X-ray source. The INRS CPA laser (400 fs pulse focused on solid targets in a 3 μm spot at 4 × 1018 W cm-2) was used to create a bright hard X-ray source (conversion efficiency of 10-5 in the characteristic K∝ line emission, 12 μm X-ray source diameter). A model of image quality has been developed and been benchmarked with specific experiments using specially made angiography phantoms |
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