# José Paulo Santos

## Professor Catedrático do Departamento de Física da FCT/UNL

DF - FCT NOVA, Quinta da Torre, 2829 -516 MONTE DA CAPARICA , PORTUGAL (email)

DF - FCT NOVA, Quinta da Torre, 2829 -516 MONTE DA CAPARICA , PORTUGAL (email)

- Citation:
- Costa, A. M., M. C. Martins, J. P. Santos, P. Indelicato, and F. Parente. "Relativistic calculation of Kα hypersatellite line energies and transition probabilities for selected atoms with 12 ≤ Z ≤ 80." Journal of Physics B: Atomic, Molecular and Optical Physics 40 (2007): 57.

The transition probabilities of Kα hypersatellite lines and energy shifts with respect to the corresponding diagram lines are computed using the Dirac–Fock model for several values of atomic number <I>Z</I> throughout the periodic table. The influence of the Breit interaction on the Kα<SUB>1</SUB><SUP>h</SUP>/Kα<SUB>2</SUB><SUP>h</SUP> line intensity ratio, Kα<SUB>1</SUB><SUP>h</SUP> and Kα<SUB>2</SUB><SUP>h</SUP> line energy shifts and Kα<SUB>1</SUB><SUP>h</SUP> to Kα<SUB>2</SUB><SUP>h</SUP> line energy splitting is evaluated. Double-K shell hole threshold values for selected elements with 23 ⩽<I>Z</I>⩽ 30, calculated within the same approach, are compared with available experimental results.

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