Phase-contrast x-ray imaging with a liquid-metal-jet-anode microfocus source
2007 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 91, no 7, 074104- p.Article in journal (Refereed) Published
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 similar to 6.5 mu 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.
Place, publisher, year, edition, pages
2007. Vol. 91, no 7, 074104- p.
Coherent light, Electron beams, Luminance, Optical resolving power, Electron-beam power density, Phase-contrast x-ray imaging, Spatial coherence
Other Engineering and Technologies
IdentifiersURN: urn:nbn:se:kth:diva-8665DOI: 10.1063/1.2769760ISI: 000248866600120ScopusID: 2-s2.0-34548008161OAI: oai:DiVA.org:kth-8665DiVA: diva2:14046
QC 201009152008-06-042008-06-042010-09-15Bibliographically approved