Results 291 to 300 of about 487,781 (346)
Dichroism in X-ray Fluorescence [PDF]
Japanese Journal of Applied Physics, 1993 We discuss circular dichroism in the x-ray fluorescence spectra of magnetic systems in the light of a recent theory1). Fully relativistic local spin density functional calculations on the L2,3 edges of ferromagnetic iron are compared with very recent experimental data, and the relationship between the dichroism spectra and the spin-resolved local ...
Strange, P +4 more
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X-ray fluorescence spectrometry
Journal of Analytical Atomic Spectrometry, 1999This annual review of X-ray fluorescence covers developments over the period 1999–2000 in instrumentation and detectors, matrix correction and spectrum analysis software, X-ray optics and microfluorescence, synchrotron XRF, TXRF, portable XRF and on-line applications as assessed from the published literature.
Philip J. Potts +6 more
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Journal of Physics: Condensed Matter, 2012
X-ray fluorescence holography (XFH) is a method of atomic resolution holography which utilizes fluorescing atoms as a wave source or a monitor of the interference field within a crystal sample. It provides three-dimensional atomic images around a specified element and has a range of up to a few nm in real space.
Wen Hu +4 more
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X-ray fluorescence holography (XFH) is a method of atomic resolution holography which utilizes fluorescing atoms as a wave source or a monitor of the interference field within a crystal sample. It provides three-dimensional atomic images around a specified element and has a range of up to a few nm in real space.
Wen Hu +4 more
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X-ray fluorescence spectrometry
Journal of Geochemical Exploration, 1992Abstract X-ray fluorescence analysis is a technique that is widely used for the determination of both major and trace elements in a wide variety of geological materials. In this review, the analytical characteristics of both wavelength and energy dispersive instrumentation are considered as well as operating and calibration procedures applicable to ...
Peter C. Webb, Philip J. Potts
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1975
The status of chemical analysis by X-ray fluorescence has developed from that of a laboratory curiosity in the decade 1940–50 to its current position as an almost universal method with, according to a recent estimate, over 8000 spectrometers in use throughout the world.
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The status of chemical analysis by X-ray fluorescence has developed from that of a laboratory curiosity in the decade 1940–50 to its current position as an almost universal method with, according to a recent estimate, over 8000 spectrometers in use throughout the world.
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Preconcentration and x-ray fluorescence
Analytica Chimica Acta, 1982Abstract X-ray fluorescence spectrometry after dithiocarbamate preconcentration is described for the determination of vanadium, nickel and iron in residual fuel oils and in small amounts of particulate emissions from oil-fired sources. After the sample has been decomposed by dry ashing or wet digestion, the metal constituents are concentrated as ...
Katsu Tanaka, Kiyoshi Iwasaki
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2018
X-Ray fluorescence (XRF) is an emission spectroscopic method for the qualitative identification and quantitative determination of elements. With few exceptions, XRF provides no information concerning the chemical species in which the sought element is found.
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X-Ray fluorescence (XRF) is an emission spectroscopic method for the qualitative identification and quantitative determination of elements. With few exceptions, XRF provides no information concerning the chemical species in which the sought element is found.
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1978
A number of different X-ray fluorescence instruments are in routine use: (i) Crystal dispersion, tube excitation, sequential counting. (ii) Crystal dispersion, tube excitation, simultaneous counting. (iii) Crystal dispersion, electron excitation. (iv) Non-dispersive, Ross filter, radioisotope excitation.
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A number of different X-ray fluorescence instruments are in routine use: (i) Crystal dispersion, tube excitation, sequential counting. (ii) Crystal dispersion, tube excitation, simultaneous counting. (iii) Crystal dispersion, electron excitation. (iv) Non-dispersive, Ross filter, radioisotope excitation.
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