Relative initial populations of low-lying levels of hydrogenlike lithium after foil-excitation

Hucke, R.; Heckmann, P. H.

doi:10.1007/bf01384446

Cited by 3 publications

(1 citation statement)

References 70 publications

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“…The n = 5 level lifetimes were obtained from a Cowan code calculation [l I], the higherlying yrast level lifetimes from a hydrogenic approximation. These numbers were then used to calculate simulated decay curves, assuming a simple population law with a population according to statistical weight and decreasing with increasing principal quantum number n (for example like n P 3 , for other examples see [14]). The result is shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Search for intercombination lines in few-electron spectra of rare-earth sequence ions of Os through Au

et al. 1990

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The eventual reordering along the isoelectronic sequences of the atomic shells of ions with 61 to 64 electrons (Pm I- to Gd I-like) into systems with one to four electrons outside the closed 4f14 electronic shell has been predicted by theory. However, this prediction provides a formidable challenge for an experimental proof, since very line-rich spectra are associated with ions with so many electrons. The possibilities and problems of a beam-foil spectroscopic approach which combines wavelength and lifetime measurements are discussed, and the results of a search for the intercombination lines expected in such few-electron spectra are presented for ions of Os, Pt and Au. Tentative identifications are given for intercombination lines in the Sm I- and Eu I-like spectra.

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Section: Introductionmentioning

confidence: 99%

Search for intercombination lines in few-electron spectra of rare-earth sequence ions of Os through Au

et al. 1990

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Measurement of the ratio of the 2s to the 2p populations for beam-foil excited hydrogen

Garnir

Baudinet-Robinet

Dumont

et al. 1989

Z Phys D - Atoms, Molecules and Clusters

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Ratios N2s/l~3. of 2s to 3p populations in hydrogen atoms formed by the passage of protons through carbon foils have been measured using the beam-foil-laser excitation method reported very recently. No dependence of Nz~/N;p on the incident proton energy Ep, in the 100-300 keV energy range analysed, is observed. From the ratio N3p/Nzp of 3 p to 2p beam-foil populations in hydrogen reported previously (N3 piN2 p independent of Ep for Ep> 100 keV) and the ratios N2JN3p measured in the present work, a mean value of N2s/N2p equal to 0.61 ___ 0.04 is deduced. These results are compared with available experimental data.

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Intercombination lines in delayed beam-foil spectra

et al. 1988

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Relative initial populations of low-lying levels of hydrogenlike lithium after foil-excitation

Cited by 3 publications

References 70 publications

Search for intercombination lines in few-electron spectra of rare-earth sequence ions of Os through Au

Search for intercombination lines in few-electron spectra of rare-earth sequence ions of Os through Au

Measurement of the ratio of the 2s to the 2p populations for beam-foil excited hydrogen

Intercombination lines in delayed beam-foil spectra

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