scholarly journals Use of the Bethe equation for inner-shell ionization by electron impact

2016 ◽  
Vol 119 (18) ◽  
pp. 184904 ◽  
Author(s):  
Cedric J. Powell ◽  
Xavier Llovet ◽  
Francesc Salvat
Keyword(s):  
Electron Impact ◽  
Bethe Equation ◽  
Inner Shell Ionization ◽  
Shell Ionization

The measurement of inner-shell ionization cross aections by electron impact in a TEM

1992 ◽  
Vol 50 (2) ◽  
pp. 1266-1267
Author(s):  
Raynald Gauvin ◽  
Gilles L'Espérance
Keyword(s):  
Electron Impact ◽  
Cross Sections ◽  
Weight Fraction ◽  
Thin Foil ◽  
Specimen Thickness ◽  
Ionization Cross ◽  
Electron Dose ◽  
Total Electron ◽  
Inner Shell Ionization ◽  
Shell Ionization

Values of cross sections for ionization of inner-shell electrons by electron impact are required for electron probe microanalysis, Auger-electron spectroscopy and electron energy-loss spectroscopy. In this work, the results of the measurement of inner-shell ionization cross-sections by electron impact, Q, in a TEM are presented for the K shell.The measurement of QNi has been performed at 120 KeV in a TEM by measuring the net X-ray intensity of the Kα line of Ni, INi, which is related to QNi by the relation :(1)where i is the total electron dose, (Ω/4π)is the fractional solid angle, ω is the fluorescence yield, α is the relative intensity factor, ε is the Si (Li) detector efficiency, A is the atomic weight, ρ is the sample density, No is Avogadro's number, t' is the distance traveled by the electrons in the specimen which is equal to τ sec θ neglecting beam broadening where τ is the specimen thickness and θ is the angle between the electron beam and the normal of the thin foil and CNi is the weight fraction of Ni.

Cross Sections for Inner-Shell Ionization by Electron Impact

2014 ◽  
Vol 43 (1) ◽  
pp. 013102 ◽  
Author(s):  
Xavier Llovet ◽  
Cedric J. Powell ◽  
Francesc Salvat ◽  
Aleksander Jablonski
Keyword(s):  
Electron Impact ◽  
Cross Sections ◽  
Inner Shell Ionization ◽  
Shell Ionization

Inner shell ionization of carbon atom by electron impact

1997 ◽  
Vol 42 (3) ◽  
pp. 157-160 ◽  
Author(s):  
B. Nath ◽  
R. Biswas ◽  
C. Sinha
Keyword(s):  
Carbon Atom ◽  
Electron Impact ◽  
Inner Shell Ionization ◽  
Shell Ionization

Inner shell ionization of surface atoms by electron impact

1972 ◽  
Vol 29 (1) ◽  
pp. 317-323 ◽  
Author(s):  
Robert L. Gerlach ◽  
A.R. DuCharme
Keyword(s):  
Electron Impact ◽  
Inner Shell Ionization ◽  
Shell Ionization

The inner shell ionization of atoms by electron impact

1940 ◽  
Vol 36 (1) ◽  
pp. 43-52 ◽  
Author(s):  
E. H. S. Burhop ◽  
H. S. W. Massey
Keyword(s):  
Experimental Data ◽  
Electron Impact ◽  
Cross Section ◽  
Nickel Silver ◽  
Inner Shell Ionization ◽  
Good For ◽  
The Cross ◽  
Shell Ionization ◽  
Good Agreement

Calculations have been made of the cross-section for ionization of the inner shells of atoms by electron impact in the cases of the K-shells of nickel, silver, mercury and of the three L-shells of silver and mercury.The agreement with experiment is reasonably good for the K-shell ionization, but only fair in the case of the rather meagre experimental data available for the L-shell. The values obtained for the relative ionization in the K- and L-shells are in good agreement with those to be expected from experiment.

Direct inner-shell ionization of atomic ions by electron impact

2006 ◽  
Vol 74 (6) ◽  
pp. 614-617
Author(s):  
V I Fisher ◽  
V A Bernshtam ◽  
I R Almiev
Keyword(s):  
Electron Impact ◽  
Atomic Ions ◽  
Inner Shell Ionization ◽  
Shell Ionization
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