SYSTEMATICS OF X-RAY TRANSITION ENERGIES FOR HIGH-Z ATOMS

R. D. DESLATTES, E. G. KESSLER, Y.-K. KIM, P. INDELICATO
1987 Le Journal de Physique Colloques  
Experimental and theoretical x-ray transition energies are precisely estimated and compared for 40<2<100. All allowed and forbidden intervals for the n=l to n=2, 3 levels are determined. The experimental values are derived from absolute wavelength measurements of Ka and KB transitions and from L series x-ray measurements. The theoretical values are obtained using a multiconfiguration Dirac-Fock code with some modifications in the Lamb shift calculations. Comparison between experiment and theory
more » ... periment and theory for 2<85 now provides a more coherent qualitative picture: (1) for the Is-'+2s-', 1s-'+3s-', and Is-'+3pT1 transitions, experimental energies are 5-10 eV larger, consistent wlth the magnitude and sign of the level shifts resulting from pair correlation and configuration mixing with Coster-Kronig and Auger transitions which were not included in the theory and (2) for the ls1+2p-' and Is-'+3d-' transitions, experimental energies are 53 eV larger, of which -1.5 eV can be attributed to pair correlation leaving t1.5 eV to higher order effects not included in our theory.
doi:10.1051/jphyscol:1987997 fatcat:2tv7hhghyvbc5ignfpkmh4d6cy