Atomic data for dielectronic satellite lines and dielectronic recombination into Ne{sup 5+}

Journal Article · Thu Jan 15 04:00:00 EST 2009 · Atomic Data and Nuclear Data Tables

DOI:https://doi.org/10.1016/j.adt.2008.07.002· OSTI ID:21163748

Mancini, R ^[1]

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1. Physics Department, University of Nevada, Reno, NV 89557 (United States)

Energy levels, radiative transition probabilities, and autoionization rates for B-like neon (Ne{sup 5+}) including 1s{sup 2}2s{sup 2}nl, 1s{sup 2}2s2pnl, and 1s{sup 2}2p{sup 2}nl (n = 2-11 and l = 0-7) states were calculated using a multiconfigurational Hartree-Fock method (Cowan code) and a relativistic many-body perturbation theory method (RMPT) code. Autoionizing levels above three thresholds (1s{sup 2}2s{sup 21}S, 1s{sup 2}2s2p {sup 3}P, 1s{sup 2}2s2p {sup 1}P) were considered. We find that configuration mixing (2s{sup 2}nl + 2p{sup 2}nl) plays an important role for all atomic characteristics. Branching ratios relative to the first threshold and the intensity factor were calculated for satellite lines and dielectronic recombination rate coefficients for the 190 odd-parity and 198 even-parity excited states. The dielectronic recombination rate coefficients including 1s{sup 2}2s{sup 2}nl, 1s{sup 2}2s2pnl, and 1s{sup 2}2p{sup 2}nl (n = 2-11 and l = 0-7) states were calculated. The contributions from the excited states higher than n = 11 were estimated by extrapolation of all atomic characteristics to derive the total dielectronic recombination rate coefficient. It is found that the distribution of the rate coefficients as a function of the orbital angular momentum quantum number shows a peak at l = 5. The total dielectronic recombination rate coefficient was derived as a function of electron temperature. The dielectronic satellite lines were also obtained. The state selective dielectronic recombination rate coefficients to excited states of B-like neon were obtained, which are useful for modeling Ne VI spectral lines in a recombining plasma.

• OSTI ID: 21163748
• Journal Information: Atomic Data and Nuclear Data Tables, Journal Name: Atomic Data and Nuclear Data Tables Journal Issue: 1 Vol. 95; ISSN ADNDAT; ISSN 0092-640X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AUTOIONIZATION
BRANCHING RATIO
CONFIGURATION MIXING
ELECTRON TEMPERATURE
EXCITED STATES
EXTRAPOLATION
HARTREE-FOCK METHOD
MANY-BODY PROBLEM
MULTICHARGED IONS
NEON
NEON IONS
ORBITAL ANGULAR MOMENTUM
PERTURBATION THEORY
PROBABILITY
RECOMBINATION
RELATIVISTIC RANGE
SIMULATION