scholarly journals Erratum to: The Bjorken limit in a simple model of electron-nucleon inelastic scattering

1971 ◽  
Vol 1 (10) ◽  
pp. 442-442
Author(s):  
A. P. Contogouris
1981 ◽  
Vol 49 (11) ◽  
pp. 1046-1050 ◽  
Author(s):  
J. G. Loeser ◽  
H. Rabitz ◽  
A. E. DePristo ◽  
E. A. Rohlfing

Fractals ◽  
1994 ◽  
Vol 02 (04) ◽  
pp. 547-552
Author(s):  
F. GÜLAY FIRAT-ACAR ◽  
AVADIS HACINLIYAN

A cascade model, using a splitting function based on a generalized Verhulst map, is introduced. It is demonstrated that phenomenological observations connected with scaling and departures from it in deep inelastic scattering can be explained by this simple model.


Author(s):  
S. Golladay

The theory of multiple scattering has been worked out by Groves and comparisons have been made between predicted and observed signals for thick specimens observed in a STEM under conditions where phase contrast effects are unimportant. Independent measurements of the collection efficiencies of the two STEM detectors, calculations of the ratio σe/σi = R, where σe, σi are the total cross sections for elastic and inelastic scattering respectively, and a model of the unknown mass distribution are needed for these comparisons. In this paper an extension of this work will be described which allows the determination of the required efficiencies, R, and the unknown mass distribution from the data without additional measurements or models. Essential to the analysis is the fact that in a STEM two or more signal measurements can be made simultaneously at each image point.


Author(s):  
Kenneth H. Downing ◽  
Robert M. Glaeser

The structural damage of molecules irradiated by electrons is generally considered to occur in two steps. The direct result of inelastic scattering events is the disruption of covalent bonds. Following changes in bond structure, movement of the constituent atoms produces permanent distortions of the molecules. Since at least the second step should show a strong temperature dependence, it was to be expected that cooling a specimen should extend its lifetime in the electron beam. This result has been found in a large number of experiments, but the degree to which cooling the specimen enhances its resistance to radiation damage has been found to vary widely with specimen types.


Author(s):  
D. L. Misell

In the electron microscopy of biological sections the adverse effect of chromatic aberration on image resolution is well known. In this paper calculations are presented for the inelastic and elastic image intensities using a wave-optical formulation. Quantitative estimates of the deterioration in image resolution as a result of chromatic aberration are presented as an alternative to geometric calculations. The predominance of inelastic scattering in the unstained biological and polymeric materials is shown by the inelastic to elastic ratio, I/E, within an objective aperture of 0.005 rad for amorphous carbon of a thickness, t=50nm, typical of biological sections; E=200keV, I/E=16.


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