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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.
%experimental energy levels: Martin,W.C., Sugar,J., Musgrove,A., Dalton, G.R., 2000,
NIST Database for Atomic Spectroscopy, Version 1.0, NIST Standard Reference Database 61.
%experimental energy levels (1s2p 3P): Curdt, W., Landi, E., Wilhelm, K., Feldman, U., 2000, Phys.Rev.A, in press
%Comment: the 1s2p 3P energies are calculated using the 1s2s 3S level as reference.
%Comment: 1s2p 3P1 energy has been calculated from the 1s2s 3P0 level using the NIST level separation.
%theoretical energy levels: interpolated using He-like ions from C V to S XV.
%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.
%observed energy levels: Martin, W.C., Sugar, J., Musgrove, A., Dalton, G.R., 1995, NIST Database for Atomic Spectroscopy, Version 1.0, NIST Standard Reference Database 61 %observed energy levels (1s2p 3P): Curdt, W., Landi, E., Wilhelm, K., Feldman, U., 2000, Phys.Rev.A, 62, 022502 %Comment: the 1s2p 3P energies are calculated using the 1s2s 3S level as reference. %Comment: 1s2p 3P1 energy has been calculated from the 1s2s 3P0 level using the NIST level separation. %A values (1s2- 1s2s): Lin, C.D., Johnson, W.R., Dalgarno, A., 1977, Phys Rev A, 15, 154 %A values (1-3, 2-phot): Drake, G.W.F., Phys Rev A, 1986, 34, 2871 %oscillator strengths: Wiese, W.L., Smith, M.W., Glennon, B.M., 1966, Atomic Trans. Prob., NSRDS-NBS-4. %comment: Wiese's oscillator strengths are hydrogenic %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % K.P.Dere and 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: na_10.splups %oscillator strengths: Wiese, W.L., Smith, M.W., Glennon, B.M., 1966, Atomic Trans. Prob., NSRDS-NBS-4 %effective collision strengths: interpolated using He-like ions from C V to S XV %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % E. Landi 2000