Journal ArticleDOI
The angular distribution of characteristic x radiation and its origin within a solid target
M Green
- Vol. 83, Iss: 3, pp 435-451
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TLDR
Theoretical distributions of continuous fluorescence have been derived by numerical integration, and they agree with the corresponding observed distributions within the limits of experimental error as mentioned in this paper, and they are well represented by a universal set of curves.Abstract:
Angular distributions of characteristic x-ray intensity have been measured for targets of widely different atomic number with incident electron energies from 0-50 kev. For the light elements, where characteristic radiation is produced mainly by direct electron impact, the experimental results are well represented by a universal set of curves. A point source model of x-ray production explains the main features of these curves. In heavy elements fluorescence generated by the continuous x-ray spectrum is important. Theoretical distributions of continuous fluorescence have been derived by numerical integration, and they agree with the corresponding observed distributions within the limits of experimental error.read more
Citations
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Journal ArticleDOI
Cross Sections for Inner-Shell Ionization by Electron Impact
TL;DR: In this paper, an analysis is presented of measured and calculated cross sections for inner-shell ionization by electron impact, and the essentials of classical and semiclassical models and quantum approximations for computing ionization cross sections.
Journal ArticleDOI
Measurements of K, L and M shell X-ray production efficiencies
M Green,V E Cosslett +1 more
TL;DR: In this article, the efficiency of production of characteristic x radiation is reported for the Kα lines of carbon, aluminium, titanium, iron, nickel, copper, germanium, molybdenum, silver and tin, for the Lα1 lines of neodymium, tantalum and gold, and for the Mα line of gold.
Book ChapterDOI
X-Ray Fluorescence Microprobe for Chemical Analysis
TL;DR: The analytical application of synchrotron radiation is the subject of this chapter and must offer some important advances over present analytical techniques or little justification can be found for the use of a facility remote to most users.
Journal ArticleDOI
A Monte Carlo calculation on the scattering of electrons in copper
TL;DR: In this paper, the Monte Carlo method described by Green in 1963 has been used to investigate the scattering of 29 kev electrons in a copper target and the results are compared with experimental data and are used to suggest how theoretical expressions obtained for an infinite solid may be modified to apply to the practical case of a semi-infinite target.
Journal ArticleDOI
Electron microprobe analysis of Ca in olivine close to grain boundaries; the problem of secondary X-ray fluorescence
John A. Dalton,Stephen Lane +1 more
TL;DR: In this article, the effect of the Fe content of the olivine and Ca content of neighboring phases on the magnitude of secondary fluorescence effects during electron microprobe analysis of Ca in olivines was determined.
References
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Journal ArticleDOI
Zur Theorie des Durchgangs schneller Korpuskularstrahlen durch Materie
Journal ArticleDOI
Back Scattering of Electrons
TL;DR: In this article, the behavior of a stream of electrons penetrating a solid target is studied with a view to determining the proportion which return to the surface and pass back into space, and two existing theories (diffusion and large-angle single elastic scattering) are adapted to this end.
Journal ArticleDOI
The efficiency of production of characteristic x-radiation in thick targets of a pure element
M Green,V E Cosslett +1 more
TL;DR: In this article, a simple theoretical expression for K quanta production in directions at large angles to the surface of a thick target, neglecting absorption, was proposed, and the ratio of indirect to total production was shown to be in agreement with experimental results both in magnitude and in independence of overvoltage U0.
Journal ArticleDOI
Sur les bases physiques de l'analyse ponctuelle par spectrographie X
Journal ArticleDOI
The transmission of cathode rays through matter
TL;DR: The existence of the parallel effect in the case of β-rays has been known for some time, and quite recently it has been confirmed by W. Wilson in as careful and detailed a way as at present seems possible as discussed by the authors.
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The efficiency of production of characteristic x-radiation in thick targets of a pure element
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