The script allows you to download spectral data for a selected element from: https://physics.nist.gov/PhysRefData/ASD/lines_form.html
Help:
python NIST_lines.py --help
Positional arguments:
positional arguments:
element Name of element from NIST Database
line Value of wavelength to be searched
n Number of wavelengths to be searched
filename Name of the file with output
Optional arguments:
options:
-h, --help show this help message and exit
--low_w LOW_W Minimum wavelength value
--upper_w UPPER_W Maximum wavelength value
--sp_num SP_NUM [SP_NUM ...] List of ionization stages
--threshold THRESHOLD Intensity threshold
python NIST_lines.py Ar 811 10 data
Output in file data.csv:
| element | sp_num | obs_wl_air(nm) | unc_obs_wl | ritz_wl_air(nm) | unc_ritz_wl | intens | gA(s^-1) | Acc | Ei(cm-1) | Ek(cm-1) | conf_i | term_i | J_i | conf_k | term_k | J_k | Type | tp_ref | line_ref | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | Ar | 1 | 811.531 | 0.001 | 811.531 | 0.001 | 35000 | 2.3e+08 | B | 93143.8 | 105463 | 3s2.3p5.(2P*<3/2>).4s | 2[3/2]* | 2 | 3s2.3p5.(2P*<3/2>).4p | 2[5/2] | 3 | nan | T5223 | L2634 |
| 1 | Ar | 1 | 810.369 | 0.001 | 810.369 | 0.001 | 20000 | 7.5e+07 | B+ | 93750.6 | 106087 | 3s2.3p5.(2P*<3/2>).4s | 2[3/2]* | 1 | 3s2.3p5.(2P*<3/2>).4p | 2[3/2] | 1 | nan | T5223 | L2634 |
| 2 | Ar | 2 | 810.369 | 2e-05 | 810.369 | 4e-05 | 12023 | nan | nan | 143371 | 155708 | 3s2.3p4.(3P).3d | 4F | 3/2 | 3s2.3p4.(3P).4p | 4P* | 1/2 | nan | nan | L11520 |
| 3 | Ar | 1 | 805.331 | 0.001 | 805.331 | 0.001 | 7 | 2.6e+06 | C | 106238 | 118651 | 3s2.3p5.(2P*<3/2>).4p | 2[3/2] | 2 | 3s2.3p5.(2P*<3/2>).4d | 2[1/2]* | 1 | nan | T1218n | L2634 |
| 4 | Ar | 2 | 804.376 | 0.002 | 804.375 | 2.6e-05 | 5 | nan | nan | 148620 | 161049 | 3s2.3p4.(1D).4s | 2D | 3/2 | 3s2.3p4.(3P).4p | 4S* | 3/2 | nan | nan | L14821 |
| 5 | Ar | 2 | 816.54 | 0.0008 | 816.539 | 2.7e-05 | 3 | nan | nan | 143108 | 155351 | 3s2.3p4.(3P).3d | 4F | 5/2 | 3s2.3p4.(3P).4p | 4P* | 3/2 | nan | nan | L14821 |
| 6 | Ar | 2 | 804.431 | 0.0008 | 804.43 | 2.6e-05 | 2 | nan | nan | 183676 | 196103 | 3s2.3p4.(3P).4d | 4D | 7/2 | 3s2.3p4.(3P<1>).4f | 2[4]* | 9/2 | nan | nan | L14821 |
| 7 | Ar | 2 | 811.065 | 0.002 | 811.066 | 2.7e-05 | 1 | nan | nan | 142717 | 155043 | 3s2.3p4.(3P).3d | 4F | 7/2 | 3s2.3p4.(3P).4p | 4P* | 5/2 | nan | nan | L14821 |
| 8 | Ar | 2 | 808.375 | 0.002 | 808.376 | 0.00014 | 1 | nan | nan | 192712 | 205079 | 3s2.3p4.(3P).4d | 2D | 3/2 | 3s2.3p4.(3P<2>).5f | 2[2]* | 5/2 | nan | nan | L14821 |
| 9 | Ar | 2 | 815.065 | 0.0008 | 815.065 | 0.00013 | 1 | nan | nan | 192712 | 204978 | 3s2.3p4.(3P).4d | 2D | 3/2 | 3s2.3p4.(3P<2>).5f | 2[3]* | 5/2 | nan | nan | L14821 |