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The Effective Use of Filters with Direct Excitation of EDXRF
Advances in X-ray Analysis, 1979AbstractPrimary beam transmission filters in energy dispersive X-ray fluorescence (EDXRF) analysis are used to shape the spectral output of the X-ray tube. The effective use of these filters allows the optimization of excitation conditions for each different analysis.
Ronald A. Vane, William D. Stewart
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Advances and Enhancements in Light Element EDXRF
Advances in X-ray Analysis, 1987One of the strongest analytical qualities of energy-dispersive x-ray fluorescence (EDXRF) is the wide range of analyte elements that can be detected and analyzed. Historically, the technique has covered all the elements from sodium (Z=11) and above. A useful measure of specific spectrometer performance is analyte sensitivity.
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EDXRF and micro-EDXRF studies of Late Bronze Age metallurgical productions from Canedotes (Portugal)
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2007Abstract Metallurgical production in Central Portugal during the Late Bronze Age was primarily based on copper–tin alloys, despite influences from the Atlantic area where copper–tin–lead alloys are common. Metallic artefacts from archaeological site of Canedotes (Central Portugal) were analysed by EDXRF to establish the type of alloys present ...
Pedro Valerio +2 more
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Bremsstrahlung excited standardless EDXRF analysis
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2004Abstract This paper demonstrates that samples can be directly exposed to an X-ray tube bremsstrahlung to obtain their elemental composition. For this purpose, the bremsstrahlung spectrum from an X-ray tube has been detected with a Si(Li) detector. A theoretical spectrum was generated which fitted well with the experimental one.
A.C. Mandal +4 more
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The Fast Analysis of Uranium Ore by EDXRF
Advances in X-ray Analysis, 1979AbstractEnergy dispersive X-ray fluorescence (EDXRF) spectrometry has been applied to the high speed analysis of uranium ore for the purpose of grading and sorting truckloads of ore at the mine. The system is able to analyze uranium ore in less than 60 seconds with uranium levels ranging from < 0.005% to > 5% U3O8.
Ronald A. Vane +2 more
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EDXRF analysis of Marajoara pubic covers
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2007This work evaluated the elemental composition of decorated pottery pubic covers (tangas) from the Marajoara culture of Marajo Island (at the mouth of the Amazon River, Brazil) using EDXRF technique. The XRF system used in this work consists in a Si(Li) detector from ORTEC, with resolution of 180 eV, at 5.9 keV, and a mini X-ray tube with Mo anode.
C. Calza +4 more
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A simple EDXRF technique to analyse alloys
The European Physical Journal Applied Physics, 2002A simple EDXRF technique to obtain the relative concentrations of different elements present in a sample is described here. Only those elements have been considered whose characteristic X-rays fall within the sensitivity range of the X-ray detector that we used.
A. C. Mandal, M. Sarkar, D. Bhattacharya
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ANALYSIS OF COPPER COINS BY EDXRF TECHNIQUE
International Journal of PIXE, 2004Coins are important archaeological objects that can provide useful information regarding preparation methodology and provenance. Their classification plays a fundamental role in dating historical events, in constructing trade routes and in establishing the welfare of population.
T. R. RAUTRAY +3 more
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Multielemental evaluation of garbage bags by EDXRF
International Journal of Environmental Analytical Chemistry, 2014Garbage bags have been broadly used for collecting household waste in Brazil and worldwide. Many of these bags are made from recycled polymers, and the presence of harmful elements is a matter of concern. In this study, an energy dispersive X-ray fluorescence (EDXRF) approach for direct analysis of garbage bags is proposed. The concentrations of K, Ca,
Almeida, Eduardo de +3 more
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Full spectrum calculations of EDXRF spectra
Powder Diffraction, 2006Rapid and accurate methods are becoming available to calculate all of the relevant physical effects that contribute to an energy-dispersive X-ray fluorescence (EDXRF) spectrum, rather than just the characteristic line intensities given by the traditional fundamental parameters method. To evaluate the utility of such methods, we have calculated the full
W. T. Elam +3 more
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