Electron-impact excitation ofSi3+(3s→3p) using a merged-beam electron-energy-loss technique

1991 ◽  
Vol 66 (2) ◽  
pp. 157-160 ◽  
Author(s):  
E. K. Wåhlin ◽  
J. S. Thompson ◽  
G. H. Dunn ◽  
R. A. Phaneuf ◽  
D. C. Gregory ◽  
...  
Keyword(s):  
Energy Loss ◽  
Electron Impact ◽  
Electron Energy ◽  
Impact Excitation ◽  
Electron Impact Excitation ◽  
Beam Electron ◽  
Electron Energy Loss

Electron‐impact excitation of UF6 at an electron energy of 20 eV in the energy‐loss range of 0–10 eV

1976 ◽  
Vol 64 (11) ◽  
pp. 4791-4793 ◽  
Author(s):  
A. Chutjian ◽  
S. K. Srivastava ◽  
S. Trajmar ◽  
W. Williams ◽  
D. C. Cartwright
Keyword(s):  
Energy Loss ◽  
Electron Impact ◽  
Electron Energy ◽  
Impact Excitation ◽  
Electron Impact Excitation ◽  
Loss Range

Electron-impact excitation of multiply-charged ions using energy loss in merged beams: e+Si3+ (3s2S1/2) ? e+Si3+ (3p2P1/2, 3/2)

1991 ◽  
Vol 21 (S1) ◽  
pp. S35-S38
Author(s):  
E. K. W�hlin ◽  
J. S. Thompson ◽  
G. H. Dunn ◽  
R. A. Phaneuf ◽  
D. C. Gregory ◽  
...  
Keyword(s):  
Energy Loss ◽  
Electron Impact ◽  
Impact Excitation ◽  
Electron Impact Excitation ◽  
Multiply Charged Ions ◽  
Multiply Charged ◽  
Charged Ions

scholarly journals Deconvolution of Overlapping Features in Electron Energy-loss Spectra: Determination of Absolute Differential Cross Sections for Electron-impact Excitation of Electronic States of Molecules

1997 ◽  
Vol 50 (3) ◽  
pp. 525 ◽  
Author(s):  
L. Campbell ◽  
P. J. O. Teubner ◽  
M. J. Brunger ◽  
B. Mojarrabi ◽  
D. C. Cartwright
Keyword(s):  
Energy Loss ◽  
Electron Energy ◽  
Cross Sections ◽  
Differential Cross ◽  
Electronic States ◽  
Impact Excitation ◽  
Spectroscopic Constants ◽  
Differential Cross Sections ◽  
Electron Energy Loss ◽  
Electron Energy Loss Spectra

A set of three computer programs is reported which allow for the deconvolution of overlapping molecular electronic state structure in electron energy-loss spectra, even in highly perturbed systems. This procedure enables extraction of absolute differential cross sections for electron-impact excitation of electronic states of diatomic molecules from electron energy-loss spectra. The first code in the sequence uses the Rydberg–Klein–Rees procedure to generate potential energy curves from spectroscopic constants, and the second calculates Franck–Condon factors by numerical solution of the Schrödinger equation, given the potential energy curves. The third, given these Franck–Condon factors, the previously calculated relevant energies for the vibrational levels of the respective electronic states (relative to the v″ = 0 level of the ground electronic state) and the experimental energy-loss spectra, extracts the differential cross sections for each state. Each program can be run independently, or the three can run in sequence to determine these cross sections from the spectroscopic constants and the experimental energy-loss spectra. The application of these programs to the specific case of electron scattering from nitric oxide (NO) is demonstrated.

scholarly journals Electron Impact Excitation of Extreme Ultra-Violet Transitions in Xe7+ – Xe10+ Ions

Atoms ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 76
Author(s):  
Aloka Kumar Sahoo ◽  
Lalita Sharma
Keyword(s):  
Electron Impact ◽  
Electron Energy ◽  
Cross Sections ◽  
Energy Levels ◽  
Ultra Violet ◽  
High Energy ◽  
Impact Excitation ◽  
Rate Coefficients ◽  
Electron Impact Excitation ◽  
Excitation Threshold

In the present work, a detailed study on the electron impact excitation of Xe7+, Xe8+, Xe9+ and Xe10+ ions for the dipole allowed (E1) transitions in the EUV range of 8–19 nm is presented. The multi-configuration Dirac–Fock method is used for the atomic structure calculation including the Breit and QED corrections along with the relativistic configuration interaction approach. We have compared our calculated energy levels, wavelengths and transition rates with other reported experimental and theoretical results. Further, the relativistic distorted wave method is used to calculate the cross sections from the excitation threshold to 3000 eV electron energy. For plasma physics applications, we have reported the fitting parameters of these cross sections using two different formulae for low and high energy ranges. The rate coefficients are also obtained using our calculated cross sections and considering the Maxwellian electron energy distribution function in the electron temperature range from 5 eV to 100 eV.

scholarly journals Flux limiting due to electron impact excitation energy loss

1996 ◽  
Vol 3 (2) ◽  
pp. 461-467 ◽  
Author(s):  
Peter J. Catto ◽  
Sergei Krasheninnikov ◽  
R. D. Hazeltine
Keyword(s):  
Energy Loss ◽  
Excitation Energy ◽  
Electron Impact ◽  
Impact Excitation ◽  
Electron Impact Excitation ◽  
Flux Limiting
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