Electron-impact excitation and ionization cross sections for the Si, Cl, and Ar isonuclear sequences

2008 ◽  
Vol 77 (6) ◽  
Author(s):  
J. Colgan ◽  
H. L. Zhang ◽  
C. J. Fontes
Keyword(s):  
Electron Impact ◽  
Cross Sections ◽  
Impact Excitation ◽  
Electron Impact Excitation ◽  
Ionization Cross ◽  
Ionization Cross Sections

scholarly journals Electron-impact double ionization of the carbon atom

2018 ◽  
Vol 620 ◽  
pp. A188 ◽  
Author(s):  
Valdas Jonauskas
Keyword(s):  
Carbon Atom ◽  
Electron Impact ◽  
Cross Sections ◽  
Double Ionization ◽  
Impact Excitation ◽  
Rate Coefficients ◽  
Electron Impact Excitation ◽  
Ionization Cross ◽  
Ionization Cross Sections ◽  
Good Agreement

Electron-impact single- and double-ionization cross sections and Maxwellian rate coefficients are presented for the carbon atom. Scaling factors are introduced for the electron-impact excitation and ionization cross sections obtained in the distorted wave (DW) approximation. It is shown that the scaled DW cross sections provide good agreement with measurements for the single ionization of the C atom and C1+ ion. The direct double-ionization (DDI) process is studied using a multi-step approach. Ionization–ionization, excitation–ionization–ionization, and ionization–excitation–ionization branches are analyzed. It is demonstrated that the three-step processes contribute ≼40% of the total DDI cross sections for the case where one of the electrons takes all of the excess energy after the first ionization process.

Calculation of electron-impact excitation and ionization of atoms and ions

1996 ◽  
Vol 74 (11-12) ◽  
pp. 875-882 ◽  
Author(s):  
Igor Bray
Keyword(s):  
Electron Impact ◽  
Cross Sections ◽  
Coupling Method ◽  
Impact Excitation ◽  
Electron Impact Excitation ◽  
Ionization Cross ◽  
Close Coupling ◽  
Spin Asymmetries ◽  
Total Ionization ◽  
Ionization Cross Sections

We present a review of applications of the convergent close-coupling method concentrating on spin-dependent electron-impact total ionization cross sections. The results for the electron-impact total ionization cross sections and the associated spin asymmetries of H, Li, O5+, Na, and He(23S) are reviewed, with new calculations being presented for the potassium target.

scholarly journals Recommended electron-impact excitation and ionization cross sections for Be I

2019 ◽  
Vol 127-128 ◽  
pp. 1-21 ◽  
Author(s):  
Dipti ◽  
T. Das ◽  
K. Bartschat ◽  
I. Bray ◽  
D.V. Fursa ◽  
...  
Keyword(s):  
Electron Impact ◽  
Cross Sections ◽  
Impact Excitation ◽  
Electron Impact Excitation ◽  
Ionization Cross ◽  
Ionization Cross Sections
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