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The CHIANTI database consists of the following primary ASCII files for this ion:
contains the energy levels in cm^(-1) It includes both experimental and theoretical values of the levels energies.
%energy levels (3,5,17,23,27,31,33,35,37,55,70): Martin,W.C., Sugar,J., Musgrove,A., Dalton,G.R.,
1999, NIST Database for Atomic Spectroscopy, Version 2.0, NIST Standard Reference Database 61.
%energy levels (4,7-10,13,14,19-22,24-26,44,52): Crance,M., 1973, Atomic Data, 5, 185
%energy levels (59,60): Fawcett,B.C., Bromage,G.E., Hayes,R.W., 1979, MNRAS, 186, 113
%energy levels (11,50,53,54,58,62): Kastner,S.O., Behring, W.E., Cohen,L., 1975, ApJ, 199, 777
%Theoretical energy levels: Zhang, H. et al., ADNDT, 1987, 37, 17
% produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E. Landi 2000
contains wavelengths, gf and A values of the transitions. The wavelengths are based on the experimental energy levels and should be the best available. Wavelengths calculated from the theoretical energies are of an indeterminate accuracy and their values are presented as negative values of the calculated wavelength.
%filename: ca_11.wgfa
%observed energy levels (3,5,17,23,27,31,33,35,37,55,70): Martin, W.C., Sugar, J., Musgrove, A., Dalton, G.R.,
1999, NIST Database for Atomic Spectroscopy, Version 2.0, NIST Standard Reference Database 61
%observed energy levels (4,7-10,13,14,19-22,24-26,44,52): Crance, M., 1973, Atomic Data, 5, 185
%observed energy levels (59,60): Fawcett, B.C., Bromage, G.E., Hayes, R.W., 1979, MNRAS, 186, 113
%observed energy levels (11,50,53,54,58,62): Kastner, S.O., Behring, W.E., Cohen, L., 1975, ApJ, 199, 777
%theoretical energy levels: Zhang, H. et al., ADNDT, 1987, 37, 17
%oscillator strengths transitions involving the ground level: Zhang, H. et al., ADNDT, 1987, 37, 17
%oscillator strengths transitions among the 2p53l configurations: Hibbert, Le Dourneuf, Mohan, ADNDT, 1993, 53, 23
% All other radiative data: SSTRUCT calculation, with a 15 configuration model including:
2s2.2p6,
2s2.2p5{3s, 3p, 3d}, 2s.2p6{3s, 3p, 3d}
2s2.2p5{4s, 4p, 4d, 4f}, 2s.2p6{4s, 4p, 4d, 4f}
%comment: SSTRUCT radiative data have been corrected for the differences between experimental
and theoretical energy levels, where possible.
%comment: negative wavelengths have been computed using theoretical energy levels.
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E. Landi 2000
contains the spline fits to the electron collision strengths scaled according the rules formulated by Burgess and Tully (1992). Accurate replication of the temperature averaged collision strength over a wide range of temperatures can be accomplished with the data in this file.
%filename: ca_11.splups %oscillator strengths transitions involving the ground level: Zhang, H. et al., ADNDT, 1987, 37, 17 %oscillator strengths transitions among the 2p53l configurations: Hibbert, Le Dourneuf, Mohan, ADNDT, 1993, 53, 23 % All other oscillator strengths: SSTRUCT calculation, with a 15 configuration model (see file ca_11.wgfa) %collision strengths: Zhang, H. et al., ADNDT, 1987, 37, 17 %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % E. Landi 2000