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Hyperfine structure and isotope shifts in 461.9 nm forbidden line of Pb I

Wasowicz T J, Drozdowski R, Kwela J

Optica Applicata

2006

Vol. 36, nr 4

s. 529--533

Studies of the hyperfine structure and the isotope shifts in the 461.9 nm (1S0–3P1) magnetic-dipole line of Pb I are presented. As a light source the electrodeless discharge tube was used. The high resolution spectral apparatus consisted of a silver coated Fabry–Perot etalon and a grating spectrograph combined with a CCD camera used as a detector. In the analysis of the spectra a computer simulation technique was used. The experiments with the isotope 207Pb yielded the hyperfine structure splitting constant A for the 3P1 level of the 6s26p2 ground configuration. In the experiment with natural lead the isotope shifts between four stable isotopes (204, 206, 207, 208) were measured.