Isotope shifts and hyperfine structure in calcium 4snp and 4snf F Rydberg states

Determination of Ionization Potential of Calcium by High-Resolution Resonance Ionization Spectroscopy

“…Since the quoted uncertainties of the reported values are 120 and 5 mK, respectively, these deviations suggest that the present values are in agreement with the reported ones. The systematic deviation of 70 mK from the literature value for np-series 13) has also been reported by Mueller et al 10) Note that the quoted uncertainties of the present IP values in Table III include only the statistical error. By considering the uncertainties of the reported value of the second-excitedstate energy, our final value of the IP of Ca is determined to be 49305.9240 (20) cm À1 .…”

“…For the odd-parity series, Brown et al reported np-series in the range of n ¼ 11{ 79, 13) Mueller et al and Makdisi et al reported nf-series in the ranges of n ¼ 13 { 40 and n ¼ 33 { 59, respectively. 10,22) In this paper, we report the results of high-resolution three-step resonance ionization spectroscopy (RIS) on oddparity Rydberg series of Ca, in particular focusing on the determination of IP. The motivation of our spectroscopic study of Ca is to provide comprehensive data for the trace isotope analysis of Ca based on RIS.…”

“…[1][2][3][4][5][6][7][8][9] For calcium, which is one of the alkaline-earth elements, however, such high-resolution spectroscopy has not been reported thus far except for a study on the isotope shift and hyperfine structure of oddparity series to our best knowledge. 10) The spectroscopic studies on Rydberg series of Ca aiming at the determination of the IP have been reported by many researchers. [11][12][13][14][15][16][17][18] From a critical evaluation of these studies, Sugar and Corliss have also suggested the best IP value of Ca.…”

Isotope shifts of the4s2S01→4s5pP1Mortensen1, Lindballe2, Jensen3 et al. 2004Phys. Rev. A490350View full textAdd to dashboardCite

“…Although isotope shifts and hyperfine splittings already have been measured for a large number of transitions in neutral Ca (see Refs. [4,5,6] and references therein) and in singly charged Ca + ions [7,8,9], the 4s 2 1 S 0 → 4s5p 1 P 1 transition considered in the present paper has hitherto not been measured. In contrast to previous experiments, the present measurements use ion Coulomb crystals as means to obtain the spectroscopic data.…”

Development of RIMS Apparatus for Isotope Analysis of Calcium in Nuclear Waste Materials

“…The isotope-shifts determined from this spectrum was found to be in good agreement with the reported values. 8) In addition, in this spectrum the ion peak of 46 Ca (isotopic abundance: 3Â 10 À5 ) appears with S/N ratio of 10-100 without any mass-separation. This means that our developed RIMS system has an abundance sensitivity of 10 À7 , which is applicable to our future analysis of 41 Ca.…”