C.P. Bhalla

OSCILLATING BEHAVIOR OF ELECTRON STOPPING POWER.

Abstract The electron stopping power is calculated by including effects due to the interaction volume and the effective atomic number. Numerical results for amorphous carbon show agreement with experiments.

Average satellite and hypersatellite fluorescence yields

Abstract Average satellite and hypersatellite fluorescence yields for different electron configurations are presented for atomic numbers, Z = 7, 8, 9, 10 and 14.

Theoretical lifetimes, transition energies, fluorescence yields, and nonradiative branching ratios for highly excited states of lithium-like argon

Abstract We have calculated theoretical transition rates and transition energies for the states of the excited electron configurations, 1s 2s nl and 1s 2p nl, of lithium-like argon. The values of n considered range from n=2 to n=4 with all allowed values of l included, l=0 to l=n-1. We present numerical results for the theoretical lifetimes, transition energies, fluorescence yields, and nonradiative branching ratios. These quantities are related to the dielectronic recombination rates and cross sections of helium-like argon.

Theoretical lifetimes and fluorescence yields for 1s2p 3P levels

Abstract Theoretical lifetimes and fluorescence yields for the 1s2p 3P levels are presented for selected atomic numbers up to Z=50.

Effects of the configuration interaction on the K-Shell auger spectrum of neon

Abstract New calculations based on the nonrelativistic Hartree-Fock-Slater model, incorporating interaction between the final states (1s 2 2s 0 sp 6 1 S 0 ) and (1s 2 2s 2 2p 4 1 ), are presented for neon. These theoretical results remove an outstanding disagreement between earlier theoretical calculations and the high-resolution measurements.

Contribution of the magnetic dipole transition in the Be isoelectronic sequence

Abstract The 1s 2 2s2p J = 2 → J = 1 M1 transition rates are calculated in the multi-configuration Hartree-Fock procedure for several members of the beryllium isoelectronic sequence. The total transition rates, including existing M2 rates, are presented for different atomic numbers.

Theoretical lifetimes and line fluorescence yields of 1s2p24P levels

Abstract Theoretical lifetimes and line fluorescence yields for the metastable states 1s2p 2 4 P e 1 2 , 3 2 , 5 2 of the Li-sequence ( Z = 7, 8, 10 and 12) are presented. The contribution of the 2p to 2s X-ray transition is included in this work.

Effect of interchannel interaction on the neon KLL Auger transition rates

Calculations of neon KLL Auger rates which include the mixing between the final 2S channels are reported. The results are compared with Kellys recent many-body-perturbation-theory calculations and with absolute rates, obtained from experiments of Gelius et al. and Krause et al.

Theoretical transition energies, lifetimes and fluorescence yields of multiply ionized silicon

Theoretical X-ray transition energies, lifetimes and partial multiplet fluorescence yields are presented for all spectroscopic terms of electron configurations with a single K-shell vacancy and varying number of electrons in the L-shell and M1-subshell for multiply-ionized silicon.

Theoretical partial dielectronic recombination rate coefficients for ground-state helium-like argon

Abstract Theoretical dielectronic recombination rate coefficients are calculated for ground-state helium-like argon. Partial dielectronic recombination rate coefficients are obtained by summing over the individual lines within the five transition arrays. 1s2 lnl ′ → 1 s 2 nl ′ for n = 2, 3 and 4 and 1s2 lnl ′ → 1s 2 2 l for n = 3 and 4. The partial rate coefficients are presented for electron temperatures corresponding to values of kT e ranging from 0.4 to 10 keV.