Abstract
Theg-Hartree method is adapted to the direct ab-initio calculation of atomic transition energy. For the improvement of numerical accuracy the newg-Hartree code is developed and used for the calculations of atomic ionization energies of selected levels of small atoms He(Z=2), Be(Z=4), Ne(Z=10), Mg(Z=12) and Ar(Z=18). The results are very similar to those obtained in a previous work. The agreement between theory and experiment is excellent.
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