John W. Simons, Byron A. Palmer, Douglas E. Hof, and Richard C. Oldenborg, "Characterization of several ultraviolet–visible emission lines from a lead hollow-cathode lamp," J. Opt. Soc. Am. B 6, 1097-1102 (1989)
The Fourier-transform spectra (0.015-cm−1 resolution) of the nonresonant 405.8-, 368.4-, and 364.0-nm lines and the resonant 283.3-nm line from a lead hollow-cathode lamp are reported. The splittings for the various isotopic and nuclear hyperfine transitions for all four lines are found to be consistent with previous measurements and assignments. At the recommended lamp operating current of 4 mA, all peak shapes within all four lines studied were satisfactorily fitted with Gaussian functions corresponding to the same Doppler temperature of 750 ± 30 K, indicating no significant self-absorption of the 283.3-nm resonant line. At a much-elevated lamp current the peaks for the nonresonant lines are increased in intensity and slightly broadened, whereas the peaks for the resonant line have approximately the same intensity as at 4 mA but are no longer Gaussian shaped.
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The quoted uncertainties are the combined uncertainties due to the average baseline noise and the determination of the heights of the peak maxima.
The predicted values were calculated from the isotopic abundances given in Table 1 and statistical formulas for the relative intensities of the 207 hyperfine transitions given on pp. 329–335 of Ref.1.
The predicted values are based on the 6p2 3p1F = 1/2 state’s being above the F = 3/2 state.
The units are inverse centimeters. The approximate uncertainty in our values for clearly resolved peaks is ±0.002 cm−1. The reader is referred to the literature for a discussion of the uncertainties in the literature values, although an uncertainty in the last significant figure is a commonand accepted practice.
Ref. 7.
Ref. 6.
Ref. 9.
Ref. 10.
An crease of ~0.015 cm−1 in the frequency of the 207a peak, which is buried under the 208peak, would bring all these values into better internal agreement as well as agreement with the other measurements.
The 207a and 207b peaks are both under other peaks.
Ref. 8.
The quoted uncertainties are the combined uncertainties due to the average baseline noise and the determination of the heights of the peak maxima.
The predicted values were calculated from the isotopic abundances given in Table 1 and statistical formulas for the relative intensities of the 207 hyperfine transitions given on pp. 329–335 of Ref.1.
The predicted values are based on the 6p2 3p1F = 1/2 state’s being above the F = 3/2 state.
The units are inverse centimeters. The approximate uncertainty in our values for clearly resolved peaks is ±0.002 cm−1. The reader is referred to the literature for a discussion of the uncertainties in the literature values, although an uncertainty in the last significant figure is a commonand accepted practice.
Ref. 7.
Ref. 6.
Ref. 9.
Ref. 10.
An crease of ~0.015 cm−1 in the frequency of the 207a peak, which is buried under the 208peak, would bring all these values into better internal agreement as well as agreement with the other measurements.
The 207a and 207b peaks are both under other peaks.
Ref. 8.