  In this contribution we present a protocol to evaluate partial and total
Auger decay rates combining the restricted active space self-consistent field
electronic structure method for the bound part of the spectrum and numerically
obtained continuum orbitals in the single-channel scattering theory framework.
On top of that, the two-step picture is employed to evaluate the partial rates.
The performance of the method is exemplified for the prototypical Auger decay
of the neon $1s^{-1}3p$ resonance. Different approximations to obtain the
continuum orbitals, the partial rate matrix elements, and the electronic
structure of the bound part are tested against theoretical and experimental
reference data. It is demonstrated that the partial and total rates are most
sensitive to the accuracy of the continuum orbitals. For instance, it is
necessary to account for the direct Coulomb potential of the ion for the
determination of the continuum wave functions. The Auger energies can be
reproduced quite well already with a rather small active space. Finally,
perspectives of the application of the proposed protocol to molecular systems
are discussed.
