Excitation energies, radiative and autoionization rates, dielectronic satellite lines, and dielectronic recombination rates for excited states of Rb-like W from Kr-like W [Relativistic atomic data for Rb-like tungsten]
Abstract
Energy levels, radiative transition probabilities, and autoionization rates for [Ni]4s24p6nl, [Ni]4s24p54l'nl, [Ni]4s4p64l'nl,[Ni]4s24p55l'nl, and [Ni]4s4p66l'nl states in Rb-like tungsten (W37+) are calculated using the relativistic many-body perturbation theory method (RMBPT code) and the Hartree–Fock relativistic method (COWAN code). Autoionizing levels above the [Ni]4s24p6 threshold are considered. It is found that configuration mixing among [Ni]4s24p54l'nl and [Ni]4s4p64l'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]4s24p6nl singly excited states, as well as the [Ni]4s24p54dnl, [Ni]4s24p54fnl, [Ni]4s4p64dnl, [Ni]4s24p64fnl, and [Ni]4s24p55l'5l doubly excited nonautoionizing states in Rb-like W37+ ion. Contributions from the [Ni]4s24p64fnl, [Ni]4s24p55l'nl, and [Ni]4s24p56l'nl doubly excited autoionizing states are evaluated numerically. The high-n 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 Rb-like W are simulated in a broad spectral range from 8 to 70 Å. These calculations provide highly accurate values for a number of W37+ properties useful for a variety of applications including for fusion applications.
- Authors:
-
- Univ. of Nevada, Reno, NV (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Univ. of Nevada, Reno, NV (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1404833
- Alternate Identifier(s):
- OSTI ID: 1330735; OSTI ID: 1511493
- Report Number(s):
- LLNL-JRNL-680589
Journal ID: ISSN 0953-4075; TRN: US1703121
- Grant/Contract Number:
- AC52-07NA27344; AC52-07NA27344 NNSA DOE grant DE; NA0002954
- Resource 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 0953-4075
- Publisher:
- IOP Publishing
- 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
Citation Formats
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 Rb-like W from Kr-like W [Relativistic atomic data for Rb-like tungsten]. United States: N. p., 2016.
Web. doi:10.1088/0953-4075/49/22/225002.
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 Rb-like W from Kr-like W [Relativistic atomic data for Rb-like tungsten]. United States. https://doi.org/10.1088/0953-4075/49/22/225002
Safronova, U. I., Safronova, A. S., and Beiersdorfer, P. Wed .
"Excitation energies, radiative and autoionization rates, dielectronic satellite lines, and dielectronic recombination rates for excited states of Rb-like W from Kr-like W [Relativistic atomic data for Rb-like tungsten]". United States. https://doi.org/10.1088/0953-4075/49/22/225002. 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 Rb-like W from Kr-like W [Relativistic atomic data for Rb-like tungsten]},
author = {Safronova, U. I. and Safronova, A. S. and Beiersdorfer, P.},
abstractNote = {Energy levels, radiative transition probabilities, and autoionization rates for [Ni]4s24p6nl, [Ni]4s24p54l'nl, [Ni]4s4p64l'nl,[Ni]4s24p55l'nl, and [Ni]4s4p66l'nl states in Rb-like tungsten (W37+) are calculated using the relativistic many-body perturbation theory method (RMBPT code) and the Hartree–Fock relativistic method (COWAN code). Autoionizing levels above the [Ni]4s24p6 threshold are considered. It is found that configuration mixing among [Ni]4s24p54l'nl and [Ni]4s4p64l'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]4s24p6nl singly excited states, as well as the [Ni]4s24p54dnl, [Ni]4s24p54fnl, [Ni]4s4p64dnl, [Ni]4s24p64fnl, and [Ni]4s24p55l'5l doubly excited nonautoionizing states in Rb-like W37+ ion. Contributions from the [Ni]4s24p64fnl, [Ni]4s24p55l'nl, and [Ni]4s24p56l'nl doubly excited autoionizing states are evaluated numerically. The high-n 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 Rb-like W are simulated in a broad spectral range from 8 to 70 Å. These calculations provide highly accurate values for a number of W37+ properties useful for a variety of applications including for fusion applications.},
doi = {10.1088/0953-4075/49/22/225002},
journal = {Journal of Physics. B, Atomic, Molecular and Optical Physics},
number = 22,
volume = 49,
place = {United States},
year = {Wed Nov 02 00:00:00 EDT 2016},
month = {Wed Nov 02 00:00:00 EDT 2016}
}
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