Calculation of Photoionization Cross Section: An Overview

1992 ◽  
pp. 105-132
Author(s):  
I. Cacelli ◽  
V. Carravetta ◽  
A. Rizzo ◽  
R. Moccia
Keyword(s):  
Cross Section ◽  
Photoionization Cross Section

XUV Absorption Spectra of Carbon Ions

1988 ◽  
Vol 102 ◽  
pp. 71-73
Author(s):  
E. Jannitti ◽  
P. Nicolosi ◽  
G. Tondello
Keyword(s):  
Absorption Spectra ◽  
Cross Section ◽  
Theoretical Calculations ◽  
Photoionization Cross Section ◽  
Carbon Ions

AbstractThe photoabsorption spectra of the carbon ions have been obtained by using two laser-produced plasmas. The photoionization cross-section of the CV has been absolutely measured and the value at threshold, σ=(4.7±0.5) × 10−19cm2, as well as its behaviour at higher energies agrees quite well with the theoretical calculations.

scholarly journals Photoionization Cross-Sections of Carbon-Like N+ Near the K-Edge (390–440 eV)

Atoms ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 27
Author(s):  
Jean-Paul Mosnier ◽  
Eugene T. Kennedy ◽  
Jean-Marc Bizau ◽  
Denis Cubaynes ◽  
Ségolène Guilbaud ◽  
...  
Keyword(s):  
High Resolution ◽  
Cross Section ◽  
Cross Sections ◽  
Experimental Studies ◽  
Photoionization Cross Section ◽  
Theoretical Work ◽  
Rydberg Series ◽  
R Matrix ◽  
Resonance Strengths ◽  
Nitrogen Ion

High-resolution K-shell photoionization cross-sections for the C-like atomic nitrogen ion (N+) are reported in the 398 eV (31.15 Å) to 450 eV (27.55 Å) energy (wavelength) range. The results were obtained from absolute ion-yield measurements using the SOLEIL synchrotron radiation facility for spectral bandpasses of 65 meV or 250 meV. In the photon energy region 398–403 eV, 1s⟶2p autoionizing resonance states dominated the cross section spectrum. Analyses of the experimental profiles yielded resonance strengths and Auger widths. In the 415–440 eV photon region 1s⟶(1s2s22p2 4P)np and 1s⟶(1s2s22p2 2P)np resonances forming well-developed Rydberg series up n=7 and n=8 , respectively, were identified in both the single and double ionization spectra. Theoretical photoionization cross-section calculations, performed using the R-matrix plus pseudo-states (RMPS) method and the multiconfiguration Dirac-Fock (MCDF) approach were bench marked against these high-resolution experimental results. Comparison of the state-of-the-art theoretical work with the experimental studies allowed the identification of new resonance features. Resonance strengths, energies and Auger widths (where available) are compared quantitatively with the theoretical values. Contributions from excited metastable states of the N+ ions were carefully considered throughout.

Measurement of the photoionization cross section of the Li atom at the 2Plevel

1977 ◽  
Vol 7 (10) ◽  
pp. 1305-1306 ◽  
Author(s):  
Nikolai V Karlov ◽  
B B Krynetskiĭ ◽  
O M Stelmakh
Keyword(s):  
Cross Section ◽  
Photoionization Cross Section

scholarly journals Vibrationally resolved B 1s photoionization cross section of BF3

2015 ◽  
Vol 635 (11) ◽  
pp. 112134
Author(s):  
D Ayuso ◽  
M Kimura ◽  
K Kooser ◽  
M Patanen ◽  
E Plesiat ◽  
...  
Keyword(s):  
Cross Section ◽  
Photoionization Cross Section

scholarly journals Photoionization cross section by Stieltjes imaging applied to coupled cluster Lanczos pseudo-spectra

2013 ◽  
Vol 139 (9) ◽  
pp. 094103 ◽  
Author(s):  
Janusz Cukras ◽  
Sonia Coriani ◽  
Piero Decleva ◽  
Ove Christiansen ◽  
Patrick Norman
Keyword(s):  
Cross Section ◽  
Photoionization Cross Section ◽  
Coupled Cluster

The energy dependence of the 4d photoionization cross-section of In and Sb

1976 ◽  
Vol 57 (3) ◽  
pp. 225-226 ◽  
Author(s):  
I. Lindau ◽  
P. Pianetta ◽  
W.E. Spicer
Keyword(s):  
Energy Dependence ◽  
Cross Section ◽  
Photoionization Cross Section

Photoionization cross-section of dominant defects in CVD diamond

1999 ◽  
Vol 8 (2-5) ◽  
pp. 721-724 ◽  
Author(s):  
J Rosa ◽  
M Vaněček ◽  
M Nesládek ◽  
L.M Stals
Keyword(s):  
Cross Section ◽  
Photoionization Cross Section ◽  
Cvd Diamond
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