Pumping of inert gases by electron‐impact ionization sources and associated memory effects

1984 ◽  
Vol 2 (1) ◽  
pp. 57-60 ◽  
Author(s):  
R. D. Willis ◽  
S. L. Allman ◽  
C. H. Chen ◽  
G. D. Alton ◽  
G. S. Hurst
1974 ◽  
Vol 52 (18) ◽  
pp. 1755-1758 ◽  
Author(s):  
S. P. Khare ◽  
B. D. Padalia ◽  
R. M. Nayak

Electron impact total ionization cross sections of neon, argon, krypton, and xenon have been calculated for the electron impact energy varying from threshold to 20 keV. The method of Khare and Padalia, modified to include approximately the effect of multi-ionization, has been employed. The results are in fair agreement with the experimental data.


Atoms ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 90
Author(s):  
Rusudan I. Golyatina ◽  
Sergey A. Maiorov

The paper presents an analysis of data on the cross sections of electron impact ionization of atoms of alkali metals, hydrogen, noble gases, some transition metals and Al, Fe, Ni, W, Au, Hg, U. For the selected sets of experimental and theoretical data, an optimal analytical formula is found and approximation coefficients are calculated. The obtained semi-empirical formula reproduces the values of the ionization cross sections in a wide range of energies with an accuracy of the order of error of the available theoretical and experimental data.


1998 ◽  
Vol 57 (5) ◽  
pp. R3161-R3164 ◽  
Author(s):  
Igor Bray ◽  
Dmitry V. Fursa ◽  
J. Röder ◽  
H. Ehrhardt

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