Journal
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
Volume 30, Issue 2, Pages 343-352Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ja00301b
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Funding
- COMPETE (Lisbon) program
- FCT (Lisbon) programs
- QREN programme Mais Centro - Programa Operacional Regional do Centro
- FEDER
- COMPETE, through the project Biomaterials for Regenerative Medicine [CENTRO-07-ST24-FEDER-002030]
- [CERN/FP/123604/2011 FEDER]
- Fundação para a Ciência e a Tecnologia [CERN/FP/123604/2011] Funding Source: FCT
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By taking advantage of the attractive features in terms of gain, position and energy resolution of the 2D-THCOBRA detector, a new large area Full-Field X-ray Fluorescence Imaging (FF-XRFI) system for EDXRF imaging applications was developed. The proposed FF-XRFI system has an active area of 10 x 10 cm(2) and can be used to examine macroscopic samples with a moderately good energy resolution (< 1.6 keV FWHM at 8 keV) and a suitable spatial resolution (similar to 500 mu m FWHM). This combination of characteristics allows us to record elemental distribution maps from the surface of different sample types by combining image and energy information. Two different approaches were used for X-ray optics, one based on a single pinhole and another based on a parallel multiple-hole collimator. To illustrate the system capabilities, some sample examples were imaged and studied.
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