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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.
%observed energy levels (2s2p 3P): Chen, M.H., Cheng, K.T., Johnson, W.R., 1993, Ph.Rev.A, 47, 3692
%theoretical energy levels: Sampson, D.H., Goett, S.J., Clark, R.E.H., 1983, ADNDT, 29, 467
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% K.P.Dere and 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: n_6.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. %observed energy levels (1s2p 3P): Chen, M.H., Cheng, K.T., Johnson, W.R., 1993, Ph.Rev.A, 47, 3692 %observed energy levels (n=6 to 8): Kelly, R.L. 1987, J. Phys. Chem. Ref. Data 16, Suppl. 1 %A values (1-2): Neill, P.A., Traebert, E., Beiersdorfer, P., et al., 2000, Phys. Scr., 62, 141 %A values (1-3, 2-phot): Drake, G.W.F., Phys Rev A, 1986, 34, 2871 %A values (1-5): Hutton, R., Restad, N., Engstroem, L., Huldt, S., 1985, Phys. Scr., 31, 506 %A values (1-6): Lin, C.D., Johnson, W.R., Dalgarno, A., Phys Rev A, 1977, 15, 154 %A values (n=2,n=3): Porquet, D. & Dubau, J. 2000, A&AS, 143, 495 %oscillator strengths (transitions with lower levels 1,2,3 not in Porquet & Dubau): Sampson,D.H., Goett,S.J., Clark,R.E.H., 1983, ADNDT, 29, 467 %oscillator strengths and A values (10-14; 11-14,15; 12-14,15,16): Wiese W.L., Fuhr J.R., 1995, NIST Database for Atomic Spectroscopy, Version 1.0, NIST Standard Reference Database 61. %oscillator strengths: Wiese,W.L., Smith,M.W., Glennon,B.M., 1966, Atomic Transition Probabilities, 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 - Aug 2006
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: n_6.splups %oscillator strengths and A values (1-13; 2-10,11,12; 3-7,13; 4-14; 5-14,15; 6-14,15,16; 7-17; 10-14; 11-14,15; 12-14,15,16): Wiese W.L., Fuhr J.R., 1995, NIST Database for Atomic Spectroscopy, Version 1.0, NIST Standard Reference Database 61 %oscillator strengths (transitions with lower levels 1,2,3): Sampson,D.H., Goett,S.J., Clark,R.E.H., 1983, ADNDT, 29, 467 %oscillator strengths: Wiese,W.L., Smith,M.W., Glennon,B.M., 1966, Atomic Transition Probabilities, NSRDS-NBS-4 %collision strengths: Sampson, D.H., Goett, S.J., Clark, R.E.H. 1983, ADNDT, 29, 467, Hydrogenic values %collision strengths within n=2 configuration: extrapolated from values of Zhang, H., Sampson, D.H., 1987, ApJSS, 63, 487 for O VII, Ne IX, Mg XI %comment: added collisional data for transitions 2-4,5,6 and 3-7,4-7,5-7,6-7 (Aug 2003). %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % K.P.Dere - August 2003
%filename: n_6.reclvl %Recombination rates: Porquet, D, & Dubau, J. 2000, A&ASS, 143, 495 %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % E. Landi - Aug 2006