Differential absorption imaging for elemental analysis of thin samples using a soft laser-plasma X-ray source

Anno: 2005

Autori: Laville S., Gizzi LA., Köster P., Labate L.

Affiliazione autori: CNR, IPCF, Intense Laser Irradiat Lab, I-56124 Pisa, Italy;
Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy;
Univ Pisa, Dipartimento Fis, Pisa, Italy

Abstract: The differential X-ray imaging technique is a powerful tool for the detection of small concentrations of contrast agents in samples, as demonstrated recently by many biological and medical applications using synchrotron radiation. In this paper, we present an implementation of this technique using a laser-plasma soft X-ray source combined with an X-ray imaging system based upon a spherically bent Bragg crystal. Using a test sample containing a solution of LiBr of known concentration, we demonstrate that the use of our table-top configuration is suitable to detect Br inside our sample via differential imaging at the L-2 edge of Br at 7.7684 Angstrom. (C) 2004 ElsevierB.V. All rights reserved.

Giornale/Rivista: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT

Volume: 538 (1-3)      Da Pagina: 738  A: 746

Parole chiavi: synchrotron-radiation; medical applications; emission; angiography; resolution
DOI: 10.1016/j.nima.2004.09.004

Citazioni: 1
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