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Title
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A large area full-field EDXRF imaging system based on a THCOBRA gaseous detector
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Author
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Abstract
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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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Language
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English
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Source (journal)
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Journal of analytical atomic spectrometry. - London
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Publication
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London
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2015
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ISSN
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0267-9477
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DOI
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10.1039/C4JA00301B
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Volume/pages
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30
:2
(2015)
, p. 343-352
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ISI
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000349145700003
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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