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Electron probe microanalysis of metal oxides
Journal of Physics E: Scientific Instruments, 1968An experimental procedure for the analysis of nonconducting specimens by using metal standards is described. The specimens are coated with about 100 A of copper by vacuum evaporation to prevent electrostatic charging and to reduce heating effects. It is found that specimens should be preferably dry polished and analysed under fixed time conditions ...
C A, Friskeny, C W, Haworth
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Electron Probe Microanalysis in Mineralogy
2021Electron probe microanalysis (EPMA) is a technique used to determine the chemical composition of materials at the micrometer scale. The instrument (“electron-probe,” or often simply known as the “probe”) is a variant of a scanning electron microscope (SEM).
Kearns, Stuart L, Wade, Jon
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Physics Bulletin, 1970
A J Tousimis and L Marton London: Academic Press 1970 pp xii + 450 price £10 10s This book consists of a collection of papers and reviews on different aspects of electron probe microanalysis, based on the papers presented at the first national conference on electron probe microanalysis, held at the University of Maryland in 1966.
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A J Tousimis and L Marton London: Academic Press 1970 pp xii + 450 price £10 10s This book consists of a collection of papers and reviews on different aspects of electron probe microanalysis, based on the papers presented at the first national conference on electron probe microanalysis, held at the University of Maryland in 1966.
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Archives of Dermatology, 1980
• Several causes of noncaseating epithelioid granulomas of the skin must be considered before the diagnosis of sarcoidosis can be made. We report here three such cases that were studied retrospectively with scanning electron microscopy in combination with backscattered electron imaging and x-ray energy spectrometry.
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• Several causes of noncaseating epithelioid granulomas of the skin must be considered before the diagnosis of sarcoidosis can be made. We report here three such cases that were studied retrospectively with scanning electron microscopy in combination with backscattered electron imaging and x-ray energy spectrometry.
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1987
Microprobe analysis techniques differ from most other techniques used to analyse geological materials in that they involve the excitation and chemical analysis of selected areas of diameter as small as a few microns on the surface of samples. Specimens must therefore be prepared as polished geological thin sections mounted on a glass slide backing, or ...
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Microprobe analysis techniques differ from most other techniques used to analyse geological materials in that they involve the excitation and chemical analysis of selected areas of diameter as small as a few microns on the surface of samples. Specimens must therefore be prepared as polished geological thin sections mounted on a glass slide backing, or ...
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Probe current stability in electron-probe microanalysis
Journal of Physics E: Scientific Instruments, 1968Quantitative electron-probe microanalysis requires a stable probe current. With adequately stable supply voltages, the main cause of instability in the conventional triode electron gun is movement of the tip of the tungsten hairpin filament forming the cathode.
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Metallurgical Microanalysis with the Electron Probe
JOM, 1963The electron-probe microanalyzer designed and built at the National Bureau of Standards is described. The functional design considerations involved are discussed, and the need for such an instrument in the metallurgical field is reviewed. Additional features and modifications of the NBS electron probe are described.
J. R. Cuthill, L. L. Wyman, H. Yakowitz
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1975
Electron-probe microanalysis (EPMA), or electron microprobe analysis (EMA), is essentially (1) a nondestructive instrumental method of qualitative and quantitative analysis for chemical elements (2)—based on measurement of the wavelengths and intensities of their characteristic x-ray spectral lines (3)—excited by an electron beam having diameter of the
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Electron-probe microanalysis (EPMA), or electron microprobe analysis (EMA), is essentially (1) a nondestructive instrumental method of qualitative and quantitative analysis for chemical elements (2)—based on measurement of the wavelengths and intensities of their characteristic x-ray spectral lines (3)—excited by an electron beam having diameter of the
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1960
Publisher Summary This chapter describes various aspects of electron probe microanalysis. The principal elements of a conventional electron probe microanalyzer are four in number. An electron optics system, consisting of an electron gun followed by reducing lenses, whose role is to produce at the level of the sample an electron probe with a diameter ...
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Publisher Summary This chapter describes various aspects of electron probe microanalysis. The principal elements of a conventional electron probe microanalyzer are four in number. An electron optics system, consisting of an electron gun followed by reducing lenses, whose role is to produce at the level of the sample an electron probe with a diameter ...
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1974
Electron probe microanalysis is an analytical technique that may be used to determine the chemical composition of a solid specimen weighing as little as 10−11 g and having a volume as small as 1 µm3. The primary advantage of electron probe microanalysis over other analytical methods is the possibility of obtaining a quantitative analysis of a specimen ...
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Electron probe microanalysis is an analytical technique that may be used to determine the chemical composition of a solid specimen weighing as little as 10−11 g and having a volume as small as 1 µm3. The primary advantage of electron probe microanalysis over other analytical methods is the possibility of obtaining a quantitative analysis of a specimen ...
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