Determination of the effective charge on an atom in a molecule from the shifts of the lines of the x-ray emission spectrum

1965 ◽  
Vol 5 (4) ◽  
pp. 605-607 ◽  
Author(s):  
V. I. Nefedov
Metrologia ◽  
2019 ◽  
Vol 56 (6) ◽  
pp. 065007
Author(s):  
Malte Wansleben ◽  
Yves Kayser ◽  
Philipp Hönicke ◽  
Ina Holfelder ◽  
André Wählisch ◽  
...  

Nature ◽  
1978 ◽  
Vol 272 (5656) ◽  
pp. 804-806 ◽  
Author(s):  
P. M. MONTAGUE ◽  
D. S. URCH
Keyword(s):  

2015 ◽  
Vol 44 (2) ◽  
pp. 69-74 ◽  
Author(s):  
Alfredo Díaz ◽  
Cristian Parra ◽  
Christian Valdés ◽  
Mauricio Santibañez ◽  
Rodolfo G. Figueroa
Keyword(s):  

1979 ◽  
Vol 44 ◽  
pp. 349-355
Author(s):  
R.W. Milkey

The focus of discussion in Working Group 3 was on the Thermodynamic Properties as determined spectroscopically, including the observational techniques and the theoretical modeling of physical processes responsible for the emission spectrum. Recent advances in observational techniques and theoretical concepts make this discussion particularly timely. It is wise to remember that the determination of thermodynamic parameters is not an end in itself and that these are interesting chiefly for what they can tell us about the energetics and mass transport in prominences.


Author(s):  
H.J. Dudek

The chemical inhomogenities in modern materials such as fibers, phases and inclusions, often have diameters in the region of one micrometer. Using electron microbeam analysis for the determination of the element concentrations one has to know the smallest possible diameter of such regions for a given accuracy of the quantitative analysis.In th is paper the correction procedure for the quantitative electron microbeam analysis is extended to a spacial problem to determine the smallest possible measurements of a cylindrical particle P of high D (depth resolution) and diameter L (lateral resolution) embeded in a matrix M and which has to be analysed quantitative with the accuracy q. The mathematical accounts lead to the following form of the characteristic x-ray intens ity of the element i of a particle P embeded in the matrix M in relation to the intensity of a standard S


Author(s):  
R. J. Narconis ◽  
G. L. Johnson

Analysis of the constituents of renal and biliary calculi may be of help in the management of patients with calculous disease. Several methods of analysis are available for identifying these constituents. Most common are chemical methods, optical crystallography, x-ray diffraction, and infrared spectroscopy. The application of a SEM with x-ray analysis capabilities should be considered as an additional alternative.A scanning electron microscope equipped with an x-ray “mapping” attachment offers an additional dimension in its ability to locate elemental constituents geographically, and thus, provide a clue in determination of possible metabolic etiology in calculus formation. The ability of this method to give an undisturbed view of adjacent layers of elements in their natural state is of advantage in determining the sequence of formation of subsequent layers of chemical constituents.


Sign in / Sign up

Export Citation Format

Share Document