High-resolution spectra of a platinum hollow-cathode lamp were obtained from 215 to 3100 nm with a Fourier-transform spectrometer. More than 320 Pt i lines were measured and used to derive accurate energy levels for 30 even and 52 odd levels. Ritz wavelength standards for Pt i in the vacuum ultraviolet were calculated.
Louis C. Marquet and Sumner P. Davis J. Opt. Soc. Am. 55(5) 471-474 (1965)
References
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Measured centroid of transition.
Assignments given as integer wave number parts of even and odd levels with J values as superscripts.
Intensity as area of centroid scaled to maximum of 1000. Zero intensity denotes a value less than 0.5 on this scale.
Code is as follows: N, narrow line; W, wide line; P, resolved pattern; B, blended; *, line not used in least-squares-level analysis.
Line also given in Ref. 13.
Line also given in Ref. 2.
Configuration assignments from Ref. 1.
The number of transitions connected to this level in the least-squares energy-level fit.
This level is given in Ref. 1 but was not determined in the present study.
Calculated using levels from Tables 2 and 3 and the J selection rules: ΔJ = 0, ±1, but ΔJ = 0 is not allowed if J = 0.
Assignments given as integer wave-number parts of even and odd levels with J values as superscripts.
These calculated lines were matched with platinum lines measured in Ref. 9.
These transitions involve the odd 48 3514 level, for which an accurate value was not obtained in this study.
Measured centroid of transition.
Assignments given as integer wave number parts of even and odd levels with J values as superscripts.
Intensity as area of centroid scaled to maximum of 1000. Zero intensity denotes a value less than 0.5 on this scale.
Code is as follows: N, narrow line; W, wide line; P, resolved pattern; B, blended; *, line not used in least-squares-level analysis.
Line also given in Ref. 13.
Line also given in Ref. 2.
Configuration assignments from Ref. 1.
The number of transitions connected to this level in the least-squares energy-level fit.
This level is given in Ref. 1 but was not determined in the present study.
Calculated using levels from Tables 2 and 3 and the J selection rules: ΔJ = 0, ±1, but ΔJ = 0 is not allowed if J = 0.
Assignments given as integer wave-number parts of even and odd levels with J values as superscripts.
These calculated lines were matched with platinum lines measured in Ref. 9.
These transitions involve the odd 48 3514 level, for which an accurate value was not obtained in this study.
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