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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.
% 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. % Theoretical energy levels: Sampson, D.H., Zhang, H.L., Fontes, C.J., 1990, ADNDT, 44, 209. %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % K.P.Dere 1994
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: al_3.wgfa
%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
%oscillator strengths: Sampson, D.H., Zhang, H.L., Fontes, C.J., 1990, ADNDT, 44, 209
%oscillator strengths: hydrogenic values for 4f-5g
%oscillator strengths: Wiese, W.L., Smith, M.W., Glennon, B.M
Atomic Transition Probabilities, Vol I, Hydrogen through Neon, NSRDS-NBS-4
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% K.P. Dere, 1994
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: al_3.splups
%oscillator strengths: Sampson, D.H., Zhang, H.L., Fontes, C.J., 1990, ADNDT, 44, 209
%oscillator strengths: hydrogenic values for 4f-5g
%oscillator strengths: Wiese, W.L., Smith, M.W., Glennon, B.M.
Atomic Transition Probabilities, Vol I, Hydrogen through Neon, NSRDS-NBS-4
%collision strengths: Sampson, D.H., Zhang, H.L., Fontes, C.J., 1990, ADNDT, 44, 209
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% K.P. Dere, 1994