Ti XVIII - VERSION 11.0

The CHIANTI database has the following primary ASCII files for this ion:

ti_18.elvlc (energy levels)

contains the energy levels (in cm-1). It includes both experimental and theoretical values of the levels energies.

 
%filename: ti_18.elvlc
%observed energy levels : Edlen,B., 1983, Ph. Scr. 28, 483
%theoretical energy levels: Zhang, Sampson, 1994, ADNDT, 56, 41.
% Produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% Enrico Landi 1999

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:  /data2/svn/chianti/dbase/trunk/ti/ti_18/ti_18.wgfa
%filename: ti_18.wgfa
%observed energy levels : Edlen,B., 1983, Ph. Scr. 28, 483
%Allowed transitions oscillator strengths: Zhang, Sampson, 1994, ADNDT, 56, 41
%intercombination transitions oscillator strengths: Zhang, Sampson, 1994, ADNDT, 56, 41
%Forbidden transition 1-2: Bhatia, Feldman, Seely, 1986, ADNDT, 35, 319
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
%  Enrico Landi - 1999

 K. Dere  minimum branching ratio =   1.00e-05  :  2017 December 06
%File processed with wgfa_tidy by pryoung on  6-Mar-2019
%File processed with wgfa_tidy by pryoung on 31-May-2023

ti_18.scups (electron collision data)

contains the effective electron collision strengths scaled according to the rules formulated by Burgess and Tully (1992).

 
% Enrico Landi 1997                                                                    
%                                                                                      
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%collision strengths: Zhang, Sampson, 1994, ADNDT, 56, 41                              
%oscillator strengths: Zhang, Sampson, 1994, ADNDT, 56, 41                             
%filename: ti_18.splups

ti_18.psplups (proton collision data)

contains the spline fits to the scaled proton collision strengths.

 

%filename: ti_18.psplups
%rates: Foster VJ, Keenan FP, Reid RHG, ADNDT 67, 99, 1997
%energies: From .elvlc file, experimental energies
%comment: The rate coefficients are in units cm^3/s.
%comment: Fits valid for temperatures 8e5 to 3e7 K.
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% Peter Young   15-May-2001

The html table below contains the radiative data of the brightest lines sorted in wavelength

ti_18_table.html (html table)