ID18F: a new micro‐x‐ray fluorescence end‐station at the European Synchrotron Radiation Facility (ESRF): preliminary results

Somogyi, Attila; Drakopoulos, M.; Vincze, László; Vekemans, Bart; Camerani, C.; Janssens, Koen; Snigirev, A.; Adams, F.

doi:10.1002/xrs.494.abs

Cited by 12 publications

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“…A double crystal monochromator using Si (1 1 1) crystals was set to produce a beam of 14.4 keV X-ray excitation energy and the secondary X-rays detected by a Si(Li) detector (Somogyi et al, 2001); we used a 2.5 · 8 lm beam and 100 s counting time for each point. A standard was previously prepared by adding 6500 ppm of NaBr to the Etna basalt and fusing it using the techniques discussed above.…”

Section: Experimental and Analytical Techniquesmentioning

confidence: 99%

Halogen diffusion in a basaltic melt

Alletti

Baker

Freda

2007

Geochimica et Cosmochimica Acta

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Section: Experimental and Analytical Techniquesmentioning

confidence: 99%

Halogen diffusion in a basaltic melt

Alletti

Baker

Freda

2007

Geochimica et Cosmochimica Acta

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“…The average nanopore density is about 10 10 cm −2 with a nanopore length of 5 µm. Then, the electrochemical deposition of pure Zn metal in the resulting anodic alumina substrate took place [11], followed by an oxidation process of embedded Zn nanowire arrays in air at 300 X-ray microanalyses were performed at the station ID18F of the European Synchrotron Radiation Facility (ESRF) [12]. The beamline is equipped with a three undulators source and a fixed-exit double Si (111) crystal monochromator with an energy resolution of ∆E/E ≈ 10 −4 .…”

Section: Methodsmentioning

confidence: 99%

Optical Investigation of ZnO Nanowires

et al. 2010

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In this study we report the application of synchrotron X-ray fluorescence, photoluminescence and Raman scattering techniques to the analysis of the incorporation of impurities in unintentionally doped ZnO nanowires. Highly ordered one-dimensional ZnO arrays were fabricated by an oxidation process of Zn metal electrodeposited in nanoporous anodic alumina template. X-ray fluorescence data show the contribution of residual elements into the ZnO nanowires growth. A rough analytical quantification of the main light and heavy chemical contents derives impurity concentrations below 1%. The optical efficiency of ZnO nanowires is strongly affected by non-radiative centers up to temperatures as low as 100 K. The photoluminescence was found to be totally dominated by optical transitions associated with the anodic alumina template. Finally, the Raman scattering provides no evidence of local vibrational modes or secondary phases, but it shows the unambiguous signature of the ZnO hexagonal phase.

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“…A primary aim of the end-station was to develop micro-XRF as an accurate and traceable quantitative analytical tool at the microscopic level and as a reference tool for other (laboratory-type) micro-analytical techniques. In addition to these high accuracy XRF microprobe measurements, the instrument is a multi-technique station which can offer simultaneous focused-probe fluorescence and wide or small angle X-ray scattering measurements and the possibility for fluorescence tomography and absorption tomography acquisitions [27].…”

Section: The Id18f Micro-xrf Beamline At the Esrfmentioning

confidence: 99%

Synchrotron X-ray fluorescence analysis in environmental and earth sciences

Adams

2010

EPJ Web of Conferences

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Abstract. Compared to other microscopic analytical tools X-ray microscopy techniques have the advantage that the large penetration depth of X-rays in matter allows one to investigate the interior of an object without destructive sample preparation. In combination with X-ray fluorescence tomography, analytical information from inside of a specimen can be obtained. Different X-ray analytical techniques can be used to produce contrast, X-ray absorption, fluorescence, and diffraction, to yield chemical, elemental, and structural information about the sample. Scanning microscopy on the basis of various lens systems in synchrotron radiation sources provides a routine spatial resolution of now about 100 nanometer but in the foreseeable future a 10-20 nanometer spatial resolution can be expected. X-ray absorption spectrometry can also provide chemical (speciation) information on the sample. All this makes X-ray microscopy attractive to many fields of science. In this paper the techniques are briefly reviewed and a number of applications in the earth, planetary and cosmos sciences are illustrated with state-of-the art examples, while applications in the environmental sciences and biology are also briefly discussed.

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ID18F: a new micro‐x‐ray fluorescence end‐station at the European Synchrotron Radiation Facility (ESRF): preliminary results

Cited by 12 publications

References 0 publications

Halogen diffusion in a basaltic melt

Halogen diffusion in a basaltic melt

Optical Investigation of ZnO Nanowires

Synchrotron X-ray fluorescence analysis in environmental and earth sciences

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