Soft laser-plasma X-ray source for differential absorption imaging of tracing elements in thin samples

Year: 2004

Authors: Gizzi LA., Cecchetti C.A., Galimberti M., Giulietti A., Giulietti D., Köster P., Labate L., Laville S., Tomassini P.

Autors Affiliation: CNR, IPCF, Intense Laser Irradiat Lab, Area Ric, I-56124 Pisa, Italy;
Univ Pisa, Dipartimento Fis, Pisa, Italy;
Ist Nazl Fis Nucl, Pisa, Italy;
Univ Bologna, Dipartimento Fis, Bologna, Italy

Abstract: The differential imaging technique is particularly suitable for the detection of small concentrations of contrasts agents for biological and medical applications in samples using X-ray radiography. In this paper, we present an application of this technique using a laser-plasma soft X-ray source combined with a bent crystal. Using a Fresnel plate as a test object, we were able to obtain spatial resolutions of the order of a few tens of microns. The use of our configuration to perform differential imaging of a test-sample at the L-2 edge of Br at 1,596 eV is finally demonstrated.


Volume: 22 (3)      Pages from: 367  to: 372

KeyWords: differential imaging; laser-plasma; X-ray absorption
DOI: 10.1017/S0263034604223229

Citations: 5
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