Single photoionization of the Kr-like Rb ii ion in the photon energy range 22–46.0 eV
Abstract
Abstract Single photoionization cross-sections for Kr-like Rb+ ions are reported in the energy (wavelength) range from 22 (564 Å) to 46 eV (270 Å). Theoretical cross-section calculations for this trans-Fe element are compared with measurements from the ASTRID radiation facility in Aarhus, Denmark and from the dual laser plasma technique, at respectively 40 and 35 meV FWHM energy resolution. In the photon energy region 22–32 eV the spectrum is dominated by excitation auto-ionizing resonance states. Above 32 eV the cross-section exhibits classic Fano window resonances features, which are analysed and discussed. Large-scale theoretical photoionization cross-section calculations, performed using a Dirac Coulomb R-matrix approximation are benchmarked against these high-resolution experimental results. Comparison of the theoretical work with the experimental studies allowed the identification of resonance features and their parameters in the spectra in addition to contributions from excited metastable states of the Rb+ ions.
- Authors:
-
[1];
[2]
- Centre for Theoretical Atomic and Molecular Physics (CTAMOP), School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN, UK, Institute for Theoretical Atomic and Molecular Physics (ITAMP), Harvard Smithsonian Center for Astrophysics, MS-14, Cambridge, MA 02138, USA
- Institute for Theoretical Atomic and Molecular Physics (ITAMP), Harvard Smithsonian Center for Astrophysics, MS-14, Cambridge, MA 02138, USA
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1505892
- Alternate Identifier(s):
- OSTI ID: 1577641
- Grant/Contract Number:
- AC02-05CH11231; PHY-1607396
- Resource Type:
- Published Article
- Journal Name:
- Monthly Notices of the Royal Astronomical Society
- Additional Journal Information:
- Journal Name: Monthly Notices of the Royal Astronomical Society Journal Volume: 486 Journal Issue: 1; Journal ID: ISSN 0035-8711
- Publisher:
- Oxford University Press
- Country of Publication:
- United Kingdom
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; Astronomy & Astrophysics; atomic data; atomic processes; scattering
Citation Formats
McLaughlin, Brendan M., and Babb, James F. Single photoionization of the Kr-like Rb ii ion in the photon energy range 22–46.0 eV. United Kingdom: N. p., 2019.
Web. doi:10.1093/mnras/stz790.
McLaughlin, Brendan M., & Babb, James F. Single photoionization of the Kr-like Rb ii ion in the photon energy range 22–46.0 eV. United Kingdom. https://doi.org/10.1093/mnras/stz790
McLaughlin, Brendan M., and Babb, James F. Sat .
"Single photoionization of the Kr-like Rb ii ion in the photon energy range 22–46.0 eV". United Kingdom. https://doi.org/10.1093/mnras/stz790.
@article{osti_1505892,
title = {Single photoionization of the Kr-like Rb ii ion in the photon energy range 22–46.0 eV},
author = {McLaughlin, Brendan M. and Babb, James F.},
abstractNote = {Abstract Single photoionization cross-sections for Kr-like Rb+ ions are reported in the energy (wavelength) range from 22 (564 Å) to 46 eV (270 Å). Theoretical cross-section calculations for this trans-Fe element are compared with measurements from the ASTRID radiation facility in Aarhus, Denmark and from the dual laser plasma technique, at respectively 40 and 35 meV FWHM energy resolution. In the photon energy region 22–32 eV the spectrum is dominated by excitation auto-ionizing resonance states. Above 32 eV the cross-section exhibits classic Fano window resonances features, which are analysed and discussed. Large-scale theoretical photoionization cross-section calculations, performed using a Dirac Coulomb R-matrix approximation are benchmarked against these high-resolution experimental results. Comparison of the theoretical work with the experimental studies allowed the identification of resonance features and their parameters in the spectra in addition to contributions from excited metastable states of the Rb+ ions.},
doi = {10.1093/mnras/stz790},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 1,
volume = 486,
place = {United Kingdom},
year = {Sat Mar 16 00:00:00 EDT 2019},
month = {Sat Mar 16 00:00:00 EDT 2019}
}
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https://doi.org/10.1093/mnras/stz790
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Works referencing / citing this record:
Photoionization of Rb 2+ ions in the valence energy region 37–44 eV
journal, May 2019
- McLaughlin, Brendan M.; Babb, James F.
- Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 52, Issue 12