Beam-Foil Studies of Radiative Transitions and Lifetimes in Cl IV - Cl X

Abstract

Bearn-foil studies of radiatice transitions and lifetimes in Cl I V -C l X .

The problem of the completeness of root vectors in the spectral theory of operator-valued functions

“…Bashkin et al [2] have noted this possibility. The 3p41 terms will lie between the 3s51 and 3s61 terms while the 3p51 terms are closer to the 3s91 and 3~101 terms.…”

“…In C1 VI we expect a large core polarizability due to the single unexcited 3s electron [2], and all the hydrogenic transitions can be resolved easily. However, the displaced term system from the 3p *P limit can produce configuration interaction perturbations.…”

“…The large degree of primary and secondary cascading in transitions of An = 1, and highest allowed I is notorious [2], and we can only expect at best an order of magnitude lifetime measurement of this term (e.g. 5g, 6h, 7i, 8k ...).…”

Wavelengths, Energy Levels, Lifetimes, and Weighted Oscillator Strengths for the S Viii Spectrum

“…Bengtsson et al (1993), using almost the same data set as we used in the present work, found 10087 ± 19 cm −1 . Isoelectronic studies of the fluorine sequence include data about F i (Lidén 1950), Ne ii (Persson 1971), Na iii Nietsche 1972 and, Mg iv (Johannesson et al 1972, Artru & Kaufman 1972, and Johannesson & Lundström 1973, Al v Brillet 1974 andArtru 1975), Si vi (Artru & Brillet 1977, Trigueiros et al 1991, and Trigueiros et al 1992, P vii (Fawcett et al 1970 andFawcett 1986), Cl ix (Bashkin et al 1973 andJupén 1985), Ar x (Bengtsson et al 1994, Fawcett et al 1978, and Lepson et al 2003, K xi (Jupén & Träbert 2001), Sc xiii and V x , and Ti xiv . Some Mg iv and Al v level designations attributed by Ferner were changed and others were rejected after an isoelectronic analysis by Artru & Kaufman (1972 and by Artru & Brillet (1974).…”

Systematic studies of highly excited Rydberg states in ions with two valance electrons

“…However, the problem of calculating high n, l transitions in Mg-like ions was deemed interesting enough for a more comprehensive study. To test our method, this study focuses on Mglike chlorine to compare with Bashkin et al (1973) and high-resolution spectra obtained at the Lund beam-foil spectroscopy facility. To show the difficulties of using isoelectronic extrapolation/interpolation in making predictions for this kind of systems, calculations have also been done on S V and Ar VII.…”