Accession Number : AD0646674

Title :   ENERGY LEVELS AND ISOTOPE SHIFTS OF TERMS FOR EXCITED STATES OF ATOMIC SPECIES OF HELIUM TYPE.

Descriptive Note : Research trans,

Corporate Author : AMERICAN METEOROLOGICAL SOCIETY BOSTON MASS

Personal Author(s) : Kantseryavichius,A. I.

Report Date : NOV 1966

Pagination or Media Count : 26

Abstract : The energy levels of excited states of the helium-like atomic species from He to O(6+), the mass effect and relativistic corrections to the energies of several levels, and isotope shifts of terms are determined on the basis of analytic orbitals. The multiconfiguration approximation is applied to the S terms with n = 2, 3, and the effectiveness of this technique of refinement of an orbital is examined in the determination of the aforementioned quantities. The theoretical data are compared with the available experimental data and with the analogous data of other authors. Some ideas about the accuracy of these data are presented. (Author)

Descriptors :   (*ATOMIC ENERGY LEVELS, *HELIUM), ISOTOPES, EXCITATION, ATOMIC ORBITALS, INTEGRALS, LINE SPECTRA, USSR

Subject Categories : Atomic and Molecular Physics and Spectroscopy
      Quantum Theory and Relativity

Distribution Statement : APPROVED FOR PUBLIC RELEASE