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ANALYTICAL DEVELOPMENTS IN X-RAY EMISSION SPECTROMETRY.PERRON, STEVEN JOSEPH. January 1982 (has links)
X-Ray emission techniques have been developed for the analysis of unusual and difficult samples that cannot be analyzed by conventional analytical techniques. Three X-ray techniques have been investigated, including radioisotope-induced X-ray fluorescence (RXRF), proton-induced X-ray emission (PIXE) and high resolution PIXE. Low flux radioisotope X-ray sources have been used to non-destructively characterize the elements present in photographic papers and emulsions. The information obtained has proven valuable for cataloging and preserving photographic prints of historical significance. Radioisotope X-ray sources have also been used in the development of low-cost, portable instrumentation useful for quantitating a variety of toxicological samples, including urine and feces samples to determine the elimination rates of X-ray contrast media containing dysprosium. The PIXE technique has been applied to the analysis of forensic samples, including bullet lead, tissue fragments and thin metal coatings, and has been compared with other non-destructive methods of analysis. Sample preparation techniques and analytical procedures have been developed for general, thin target, quantitative PIXE analysis. These procedures were applied to the analysis of five NBS standard reference materials, and to the analysis of deep-sea ferromanganese nodules. A high resolution (2 eV) PIXE system has been developed to aid in the deconvolution of overlapping X-ray peaks encountered in conventional PIXE spectra. This system has been applied to the measurement of chemical shifts in the X-ray emisson spectra of transition metal compounds.
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CHARACTERISTIC AND NON-CHARACTERISTIC X-RAYS FROM ION-ATOM COLLISIONSOona, Henn, 1939- January 1974 (has links)
No description available.
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Fluorescent X-ray spectrography /Radoslovich, Edward William. January 1900 (has links) (PDF)
Thesis (M.Sc.) --University of Adelaide, 1951. / Typewritten copy.
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La structure fine de l'absorption des rayons X par les gaz moléculaires ...Petersen, Hendrik, January 1900 (has links)
Proefschrift--Groningen. / "Samenvattend overzicht": p. [55]-57. "Stellingen" (2 leaves) laid in. Includes bibliographical references.
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Quantitative in vivo elemental analysis using X-ray fluorescence and scattering techniques applications to cadmium, lead and bone mineral /Nilsson, Ulf. January 1994 (has links)
Thesis (doctoral)--Lund University, 1994. / Added t.p. with thesis statement inserted.
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A study of the X-ray spectroscopic method for chemical analysis ...Olson, Carl Marcus, January 1939 (has links)
Thesis (Ph. D.)--University of Chicago, 1936. / Lithoprinted. "Private edition, distributed by the University of Chicago libraries, Chicago, Illinois."
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Absorption edge difference imaging using quasi-monochromatic x-rays and fluoroscopic video subtraction techniquesKelcz, Frederick, January 1900 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1975. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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La structure fine de l'absorption des rayons X par les gaz moléculaires ...Petersen, Hendrik, January 1900 (has links)
Proefschrift--Groningen. / "Samenvattend overzicht": p. [55]-57. "Stellingen" (2 leaves) laid in. Bibliographical foot-notes.
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Quantitative in vivo elemental analysis using X-ray fluorescence and scattering techniques applications to cadmium, lead and bone mineral /Nilsson, Ulf. January 1994 (has links)
Thesis (doctoral)--Lund University, 1994. / Added t.p. with thesis statement inserted.
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Ontwikkeling van monostandaardkalibrasiemetodes in X-straalfluoressensie-analiseOosthuizen, Neil 18 March 2014 (has links)
M.Sc. (Chemistry) / In this investigation a monostandard calibration technique was developed for multi-element X-ray fluorescence analysis. A reliable method is described for the calculation of slopes of calibration lines for thin-film and powder samples using monochromatic as well as polichromatic excitation. Theoretically calculated slopes for elements within one serles, e.g. the K-series, were normalised .using one or two known slopes for elements in the series. The mathematical equations used to -. interpolate slopes as a function of atomic number, were based on the fundamental relationship between fluorescent intensity and atomic number, fluorescent yield, detector efficiency, concentration and mass absorption coefficients. Kramer's formula was used to approximate the shape of the" primary radiation spectrum. The method was applied to the analysis of the K-series elements, with the use of thin-film and powder samples. The excitation was achieved by the use of a molybdenum-, gold-, tungsten- and chrome anodes. The method was also applied to the analysis of the L-series powder samples. The monochromatic excitation of the L-series elements, achieved with the use of a molybdenum anode, is also described. The polichromatic excitation of the L-series powder samples was obtained with a molybdenum-, gold-, tungsten- and chrome anode.
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