论文信息 - Analysis of the Fourth Spectrum of Tungsten (W IV)

Analysis of the Fourth Spectrum of Tungsten (W IV)

The spectrum of triply ionized tungsten (W IV) was produced in a sliding-spark discharge and recorded photographically on the NBS 10.7 m normal-incidence vacuum spectrograph in the 600-2600 A spectral region. The analysis has established all 37 levels of the 5d3, 5d26s and 5d6s2 even configurations and all 68 levels of the 5d26p and 5d6s6p odd confugurations. A total of 774 lines have been classified as transitions between these levels. Comparison of observed level values with those calculated in a least-squares fit shows an rms deviation of ± 50 cm-1 for the even configurations and ± 250 cm-1 for the odd ones.

V. Kaufman | L. Iglesias | O. García-Riquelme | F. R. Rico

[1] S. Johansson. The Spectrum and Term System of Fe II , 1978 .

[2] F. Meijer,et al. The analysis of the fourth spectrum of tantalum, Ta IV , 1978 .

[3] V. Kaufman,et al. Reference Wavelengths From Atomic Spectra in the Range 15 Å to 25000 Å , 1974 .

[4] W. C. Martin,et al. Perturbations and Coupling in the d 9 sp Configurations of Cu i, Zn ii, Ag i, Cd ii, and Tl iii , 1969 .

[5] A. G. Shenstone. The first spectrum of copper (Cu I) , 1948, Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences.

[6] H. N. Russell,et al. Report on Notation for Atomic Spectra , 1929 .