Excitation energies, radiative and autoionization rates, dielectronic satellite lines, and dielectronic recombination rates for excited states of Rblike W from Krlike W [Relativistic atomic data for Rblike tungsten]
Energy levels, radiative transition probabilities, and autoionization rates for [Ni]$$4{s}^{2}4{p}^{6}{nl}$$, [Ni]$$4{s}^{2}4{p}^{5}4l^{\prime} {nl}$$ ($$l^{\prime} =d,f,n$$ = 4–7), [Ni]$$4s4{p}^{6}4l^{\prime} {nl}$$, ($$l^{\prime} =d,f,n$$ = 4–7), [Ni]$$4{s}^{2}4{p}^{5}5l^{\prime} {nl}$$ (n = 5–7), and [Ni]$$4s4{p}^{6}6l^{\prime} {nl}$$ (n = 6–7) states in Rblike tungsten (W37+) are calculated using the relativistic manybody perturbation theory method (RMBPT code) and the Hartree–Fockrelativistic method (COWAN code). Autoionizing levels above the [Ni]$$4{s}^{2}4{p}^{6}$$ threshold are considered. It is found that configuration mixing among [Ni]$$4{s}^{2}4{p}^{5}4l^{\prime} {nl}$$ and [Ni]$$4s4{p}^{6}4l^{\prime} {nl}$$ plays an important role for all atomic characteristics. Branching ratios relative to the first threshold and intensity factors are calculated for satellite lines, and dielectronic recombination (DR) rate coefficients are determined for the [Ni]$$4{s}^{2}4{p}^{6}{nl}$$ (n = 4–7) singly excited states, as well as the [Ni]$$4{s}^{2}4{p}^{5}4{dnl}$$, [Ni]$$4{s}^{2}4{p}^{5}4{fnl}$$, [Ni]$$4s4{p}^{6}4{dnl}$$, [Ni]$$4{s}^{2}4{p}^{6}4{fnl}$$, (n = 4–6), and [Ni]$$4{s}^{2}4{p}^{5}5l^{\prime} 5l$$ doubly excited nonautoionizing states in Rblike W37+ ion. Contributions from the [Ni]$$4s24{p}^{6}4{fnl}$$ (n = 6–7), [Ni]$$4{s}^{2}4{p}^{5}5l^{\prime} {nl}$$ (n = 5–6), and [Ni]$$4{s}^{2}4{p}^{5}6l^{\prime} {nl}$$ (n = 6–7) doubly excited autoionizing states are evaluated numerically. The highn state (with n up to 500) contributions are very important for high temperatures. These contributions are determined by using a scaling procedure. Synthetic dielectronic satellite spectra from Rblike W are simulated in a broad spectral range from 8 to 70 Å. Here, these calculations provide highly accurate values for a number of W ^{37+} properties useful for a variety of applications including for fusion applications.
 Authors:

^{[1]};
^{[1]};
^{[2]}
 Univ. of Nevada, Reno, NV (United States)
 Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
 Publication Date:
 Report Number(s):
 LLNLJRNL680589
Journal ID: ISSN 09534075; TRN: US1703121
 Grant/Contract Number:
 AC5207NA27344; AC5207NA27344 NNSA DOE grant DE
 Type:
 Accepted Manuscript
 Journal Name:
 Journal of Physics. B, Atomic, Molecular and Optical Physics
 Additional Journal Information:
 Journal Volume: 49; Journal Issue: 22; Journal ID: ISSN 09534075
 Publisher:
 IOP Publishing
 Research Org:
 Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
 Sponsoring Org:
 USDOE
 Country of Publication:
 United States
 Language:
 English
 Subject:
 70 PLASMA PHYSICS AND FUSION; 74 ATOMIC AND MOLECULAR PHYSICS; atomic theory; dielectronic recombination; dielectronic satellite spectra; perturbation theory
 OSTI Identifier:
 1404833
 Alternate Identifier(s):
 OSTI ID: 1330735
Safronova, U. I., Safronova, A. S., and Beiersdorfer, P.. Excitation energies, radiative and autoionization rates, dielectronic satellite lines, and dielectronic recombination rates for excited states of Rblike W from Krlike W [Relativistic atomic data for Rblike tungsten]. United States: N. p.,
Web. doi:10.1088/09534075/49/22/225002.
Safronova, U. I., Safronova, A. S., & Beiersdorfer, P.. Excitation energies, radiative and autoionization rates, dielectronic satellite lines, and dielectronic recombination rates for excited states of Rblike W from Krlike W [Relativistic atomic data for Rblike tungsten]. United States. doi:10.1088/09534075/49/22/225002.
Safronova, U. I., Safronova, A. S., and Beiersdorfer, P.. 2016.
"Excitation energies, radiative and autoionization rates, dielectronic satellite lines, and dielectronic recombination rates for excited states of Rblike W from Krlike W [Relativistic atomic data for Rblike tungsten]". United States.
doi:10.1088/09534075/49/22/225002. https://www.osti.gov/servlets/purl/1404833.
@article{osti_1404833,
title = {Excitation energies, radiative and autoionization rates, dielectronic satellite lines, and dielectronic recombination rates for excited states of Rblike W from Krlike W [Relativistic atomic data for Rblike tungsten]},
author = {Safronova, U. I. and Safronova, A. S. and Beiersdorfer, P.},
abstractNote = {Energy levels, radiative transition probabilities, and autoionization rates for [Ni]$4{s}^{2}4{p}^{6}{nl}$, [Ni]$4{s}^{2}4{p}^{5}4l^{\prime} {nl}$ ($l^{\prime} =d,f,n$ = 4–7), [Ni]$4s4{p}^{6}4l^{\prime} {nl}$, ($l^{\prime} =d,f,n$ = 4–7), [Ni]$4{s}^{2}4{p}^{5}5l^{\prime} {nl}$ (n = 5–7), and [Ni]$4s4{p}^{6}6l^{\prime} {nl}$ (n = 6–7) states in Rblike tungsten (W37+) are calculated using the relativistic manybody perturbation theory method (RMBPT code) and the Hartree–Fockrelativistic method (COWAN code). Autoionizing levels above the [Ni]$4{s}^{2}4{p}^{6}$ threshold are considered. It is found that configuration mixing among [Ni]$4{s}^{2}4{p}^{5}4l^{\prime} {nl}$ and [Ni]$4s4{p}^{6}4l^{\prime} {nl}$ plays an important role for all atomic characteristics. Branching ratios relative to the first threshold and intensity factors are calculated for satellite lines, and dielectronic recombination (DR) rate coefficients are determined for the [Ni]$4{s}^{2}4{p}^{6}{nl}$ (n = 4–7) singly excited states, as well as the [Ni]$4{s}^{2}4{p}^{5}4{dnl}$, [Ni]$4{s}^{2}4{p}^{5}4{fnl}$, [Ni]$4s4{p}^{6}4{dnl}$, [Ni]$4{s}^{2}4{p}^{6}4{fnl}$, (n = 4–6), and [Ni]$4{s}^{2}4{p}^{5}5l^{\prime} 5l$ doubly excited nonautoionizing states in Rblike W37+ ion. Contributions from the [Ni]$4s24{p}^{6}4{fnl}$ (n = 6–7), [Ni]$4{s}^{2}4{p}^{5}5l^{\prime} {nl}$ (n = 5–6), and [Ni]$4{s}^{2}4{p}^{5}6l^{\prime} {nl}$ (n = 6–7) doubly excited autoionizing states are evaluated numerically. The highn state (with n up to 500) contributions are very important for high temperatures. These contributions are determined by using a scaling procedure. Synthetic dielectronic satellite spectra from Rblike W are simulated in a broad spectral range from 8 to 70 Å. Here, these calculations provide highly accurate values for a number of W37+ properties useful for a variety of applications including for fusion applications.},
doi = {10.1088/09534075/49/22/225002},
journal = {Journal of Physics. B, Atomic, Molecular and Optical Physics},
number = 22,
volume = 49,
place = {United States},
year = {2016},
month = {11}
}