Elemental biological imaging by differential absorption with a laser-produced x-ray source
Författare
Summary, in English
We demonstrate the novel application of hard x rays emitted by a laser-produced plasma for differential imaging of elements. An x-ray-emitting laser-produced plasma, obtained by the focusing of radiation from a 10-Hz terawatt laser, is used for biological imaging. The x-ray source can be arranged to yield characteristic x-ray emission lines with photon energies that bridge the K absorption edge of a chosen atomic species. One can obtain element-specific radiographs by recording transillumination images for different target materials on digital image plates and by subsequently subtracting or dividing the images. Successful phantom and experimental animal imaging are performed utilizing tantalum and gadolinium as target materials for the terawatt laser and gadolinium as the imaged contrast agent.
Avdelning/ar
Publiceringsår
1996
Språk
Engelska
Sidor
209-215
Publikation/Tidskrift/Serie
Journal of the Optical Society of America B: Optical Physics
Volym
13
Issue
1
Fulltext
- Available as PDF - 981 kB
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Dokumenttyp
Artikel i tidskrift
Förlag
Optical Society of America
Ämne
- Atom and Molecular Physics and Optics
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0740-3224