Phase-contrast x-ray imaging with a liquid-metal-jet-anodemicrofocus source

Phase-contrast methods increase contrast, detail, and selectivity in x-ray imaging. Present compact x-ray sources do not provide the necessary spatial coherence with sufficient power to allow the laboratory-scale high-resolution phase-contrast imaging with adequate exposure times. In this letter, th...

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Bibliographic Details
Published in:Applied physics letters 2007-08, Vol.91 (7), p.074104-074104-3
Main Authors: Tuohimaa, T., Otendal, M., Hertz, H. M.
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Summary:Phase-contrast methods increase contrast, detail, and selectivity in x-ray imaging. Present compact x-ray sources do not provide the necessary spatial coherence with sufficient power to allow the laboratory-scale high-resolution phase-contrast imaging with adequate exposure times. In this letter, the authors demonstrate phase-contrast imaging with few-micron detail employing a compact ∼ 6.5 μ m spot liquid-metal-jet-anode high-brightness microfocus source. The 40 W source is operated at more than ten times higher electron-beam power density than present microfocus sources and is shown to provide sufficient spatial coherence as well as scalability to high power, thereby enabling the application of phase-contrast x-ray imaging with short exposure times in clinics and laboratories.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2769760