Dielectronic recombination data for dynamic finite-density plasmas - I. Goals and methodology
By N. Badnell, M. O’Mullane, H. Summers, Z. Altun, M. Bautista, J. Colgan, T. Gorczyca, D. Mitnik, M. Pindzola, Oleg Zatsarinny. 2003
199 citations recorded by the source corpus.
A programme is outlined for the assembly of a comprehensive dielectronic recombination database within the generalized collisional-radiative (GCR) framework. It is valid for modelling ions of elements in dynamic finite-density plasmas such as occur in transient astrophysical plasmas such as solar flares and in the divertors and high transport regions of magnetic fusion devices. The resolution and precision of the data are tuned to spectral analysis and so are sufficient for prediction of the dielectronic recombination contributions to individual spectral line emissivities. The fundamental data are structured according to the format prescriptions of the Atomic Data and Analysis Structure (ADAS) and the production of relevant GCR derived data for application is described and implemented following ADAS. The requirements on the dielectronic recombination database are reviewed and the new data are placed in context and evaluated with respect to older and more approximate treatments. Illustrative results validate the new high-resolution zero-density dielectronic recombination data in comparison with measurements made in heavy-ion storage rings utilizing an electron cooler. We also exemplify the role of the dielectronic data on GCR coefficient behaviour for some representative light and medium weight elements.
Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/452a1d586362ae0f88743013d52a02162327ef85
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Citations in the corpus
- X-RAY REFLECTED SPECTRA FROM ACCRETION DISK MODELS. III. A COMPLETE GRID OF IONIZED REFLECTION CALCULATIONS (2013, methodology): “The implementation of the updated radiative and dielectronic recombination rates from Badnell (2006) and Badnell et al. (2003).”
- Ionization state, excited populations and emission of impurities in dynamic finite density plasmas: I. The generalized collisional–radiative model for light elements (2005, methodology): “Category c is from BBGP approximations, b from LS-coupled calculations using Autostructure from the DR Project and a from IC-coupled calculations using Autostructure with parent and lowest resonance energy level adjustments from the DR Project.”
- Radiative Recombination Data for Modeling Dynamic Finite-Density Plasmas (2006, methodology): “Atomic Details For each sequence, we used the same set of initial and final configurations as was done for ( n ¼ 0) DR (Badnell et al. 2003), i.e., we included configuration mixing in the initial N-electron, and final N- or (N þ 1)-electron complexes for RR outside or into the initial complexes,…”
- CHIANTI—An Atomic Database for Emission Lines. XV. Version 9, Improvements for the X-Ray Satellite Lines (2019, methodology): “Dielectronic recombination rates into the levels above the ionization potential have been calculated following Burgess (1964) or, equivalently, equation 15 of Badnell et al. (2003).”
- A NEW APPROACH TO ANALYZING SOLAR CORONAL SPECTRA AND UPDATED COLLISIONAL IONIZATION EQUILIBRIUM CALCULATIONS. II. UPDATED IONIZATION RATE COEFFICIENTS (2008, methodology): “Recently, however, state-of-the-art electron-ion recombina- tion data have been published for K-shell, L-shell, and Na-like ions of all elements from H – 3 – through Zn (Badnell et al. 2003; Badnell 2006a,b,c; Gu 2003a,b, 2004).”
- Observations of Turbulent Magnetic Reconnection within a Solar Current Sheet (2018, background): “…response functions of AIA including non-ionization equilibrium effects (Imada et al. 2011), non-thermal populations of electrons, modifications of dielectronic recombination rates (Summers 1974; Badnell et al. 2003), radiative transfer effects (Judge 2010), and even unknown filling factor.”
- CHIANTI - an atomic database for emission lines. IX. Ionization rates, recombination rates, ionization equilibria for the elements hydrogen through zinc and updated atomic data (2009, methodology): “Badnell and colleagues, as outlined by Badnell et al. (2003), have used the AUTOSTRUCTURE program to calculate dielectronic coefficients for a number of ions.”
- DIFFERENTIAL EMISSION MEASURE ANALYSIS OF MULTIPLE STRUCTURAL COMPONENTS OF CORONAL MASS EJECTIONS IN THE INNER CORONA (2012, background): “…in the response function Ri(T ), including non-ionization equilibrium effects, non-thermal populations of electrons, modifications of dielectronic recombination rates owing to finite density plasmas (e.g., Summers 1974; Badnell et al. 2003), and even radiative transfer effects (Judge 2010).”
- Time-dependent Ionization in Radiatively Cooling Gas (2006, unknown): “…1991; Pequignot et al. 1991;Arnaud&Raymond1992;Verner et al. 1996), dielectronic recombination (Aldrovandi & Pequignot 1973; Arnaud & Raymond 1992; Badnell et al. 2003; Badnell 2006; Colgan et al. 2003, 2004, 2005; Zatsarinny et al. 2003, 2004a, 2004b, 2005a, 2005b, 2006; Altun et al. 2004, 2005,…”
- Models of the Solar Chromosphere and Transition Region from SUMER and HRTS Observations: Formation of the Extreme-Ultraviolet Spectrum of Hydrogen, Carbon, and Oxygen (2008, methodology): “Also in these calculations we include the dielectronic recombination rates from Badnell et al. (2003) using their fitting parameters.2 The paper of Badnell et al. includes the dependence on electron density, but the on-line tables we use do not.”