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Title: Wavelengths and transition probabilities in heavy Ge-like ions (70 {<=} Z {<=} 92)

Abstract

Wavelengths and transition probabilities have been calculated for the 4s{sup 2}4p{sup 2}-4s4p{sup 3} and 4s{sup 2}4p{sup 2}-4s{sup 2}4p4d allowed transitions and for the forbidden (M1 and E2) transitions occurring within the ground configuration (4s{sup 2}4p{sup 2}) in the heavy Ge-like ions with Z = 70-92. The fully relativistic multiconfiguration Dirac-Fock method taking into account both the correlations within the n = 4 complex and the QED effects has been used for the calculations. The present results are compared to and agree well with recent electron-beam ion-trap measurements in tungsten, osmium, gold, bismuth, thorium, and uranium.

Authors:
 [1];  [2];  [3];  [2];  [3];  [4]
  1. Astrophysique et Spectroscopie, Universite de Mons-Hainaut, B-7000 Mons (Belgium). E-mail: palmeri@umh.ac.be
  2. Astrophysique et Spectroscopie, Universite de Mons-Hainaut, B-7000 Mons (Belgium)
  3. (Bat. B15), Sart Tilman, Universite de Liege, B-4000 Liege (Belgium)
  4. Physics and Advanced Technologies, Lawrence Livermore National Laboratory, Livermore, CA 94550-9234 (United States)
Publication Date:
OSTI Identifier:
20976804
Resource Type:
Journal Article
Resource Relation:
Journal Name: Atomic Data and Nuclear Data Tables; Journal Volume: 93; Journal Issue: 3; Other Information: DOI: 10.1016/j.adt.2006.11.001; PII: S0092-640X(06)00064-7; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BISMUTH IONS; E2-TRANSITIONS; ELECTRON BEAMS; GOLD IONS; HARTREE-FOCK METHOD; M1-TRANSITIONS; NUCLEAR DATA COLLECTIONS; PROBABILITY; QUANTUM ELECTRODYNAMICS; RELATIVISTIC RANGE; THORIUM IONS; TUNGSTEN IONS; URANIUM IONS; WAVELENGTHS

Citation Formats

Palmeri, P., Quinet, P., IPNAS, Biemont, E., IPNAS, and Traebert, E. Wavelengths and transition probabilities in heavy Ge-like ions (70 {<=} Z {<=} 92). United States: N. p., 2007. Web. doi:10.1016/j.adt.2006.11.001.
Palmeri, P., Quinet, P., IPNAS, Biemont, E., IPNAS, & Traebert, E. Wavelengths and transition probabilities in heavy Ge-like ions (70 {<=} Z {<=} 92). United States. doi:10.1016/j.adt.2006.11.001.
Palmeri, P., Quinet, P., IPNAS, Biemont, E., IPNAS, and Traebert, E. Tue . "Wavelengths and transition probabilities in heavy Ge-like ions (70 {<=} Z {<=} 92)". United States. doi:10.1016/j.adt.2006.11.001.
@article{osti_20976804,
title = {Wavelengths and transition probabilities in heavy Ge-like ions (70 {<=} Z {<=} 92)},
author = {Palmeri, P. and Quinet, P. and IPNAS and Biemont, E. and IPNAS and Traebert, E.},
abstractNote = {Wavelengths and transition probabilities have been calculated for the 4s{sup 2}4p{sup 2}-4s4p{sup 3} and 4s{sup 2}4p{sup 2}-4s{sup 2}4p4d allowed transitions and for the forbidden (M1 and E2) transitions occurring within the ground configuration (4s{sup 2}4p{sup 2}) in the heavy Ge-like ions with Z = 70-92. The fully relativistic multiconfiguration Dirac-Fock method taking into account both the correlations within the n = 4 complex and the QED effects has been used for the calculations. The present results are compared to and agree well with recent electron-beam ion-trap measurements in tungsten, osmium, gold, bismuth, thorium, and uranium.},
doi = {10.1016/j.adt.2006.11.001},
journal = {Atomic Data and Nuclear Data Tables},
number = 3,
volume = 93,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}
  • Wavelengths and transition probabilities have been calculated for the n = 4 {sup {yields}} n' = 4 allowed transitions in the heavy Cu-like ions with Z = 70-92. Fully relativistic multiconfiguration Dirac-Fock (MCDF) calculations were carried out. They take into account the correlations within the n = 4 complex, the core-valence n = 3 {sup {yields}} n' = 4 virtual excitations, and quantum electrodynamics effects. The present results are compared to and agree well with recent electron-beam ion-trap (EBIT) measurements in ytterbium, tungsten, osmium, gold, lead, bismuth, thorium, and uranium.
  • No abstract prepared.
  • Wavelengths, transition probabilities, and oscillator strengths have been calculated for M-shell electric dipole transitions in Co-, Ni-, Cu-, Zn-, Ga-, Ge-, and Se-like Au ions. The fully relativistic multiconfiguration Dirac–Fock method, taking quantum electrodynamical effects and the Breit correction into account, was used in the calculations. Calculated energy levels of M-shell excited states for Cu-, Zn-, Ga-, Ge-, and Se-like Au ions from the method were compared with available theoretical and experimental results, and good agreement with them was achieved.
  • The investigation by Z.-Q Zhang et al. (Acta Optica Sinica 11, 193, 1991) shows that it is possible to realize soft X-ray lasing in the water window 23.3-43.8 [Angstrom] with the Na-like recombination scheme, which requires a lower pumping power at a high-power laser facility than that with other schemes. The fine-structure levels with n [le] 15 and l [le] 6 in Na-like ions with 38 [le] Z [le] 45 and the probabilities for radiative transitions between these levels are calculated using the multiconfiguration Dirac-Fock approach. The calculations show that the wavelengths of the anticipated laser transitions 6 f-4d andmore » 6g-4f in the Na-like ions with 38 [le] Z [le] 43 and 5f-4d and 5g-4f in the Na-like ions with 40 [le] Z [le] 45 lie in the region of the water window.« less
  • An investigation by Xu et al. predicts the possibility that lasing in the water window (23.3-43.8 [angstrom]) will be realized with the Li-like recombination scheme at a large-scale high-power laser facility. The calculations show that the wavelengths of the transitions 5f-3d and 5d-3p in Ca[sup 17+], Sc[sup 18+], Ti[sup 19+], V[sup 20+], Cr[sup 21+], and Mn[sup 22+] lie in the region of the water window. The fine-structure levels (n [le] 12, l [le] 5) for these six Li-like ions and the radiative transition probabilities between them are calculated in the multiconfiguration Dirac-Fock Scheme. 18 refs., 3 tabs.