PHOTOIONIZATION CROSS SECTION CALCULATIONS OF Eu AND ITS
IONS Eu+ AND Eu++
M.Ya.Amusia, L.V.Chernysheva and V.K.Ivanov
A.F.Ioffe Physical-Technical Institute, St.Petersburg,Russia
St.Petersburg State Technical University, St.Petersburg,Russia
Partial and total photoionisation cross sections and
photoelectron angular distributions
for Eu, Eu$^+$ and Eu$^{++}$ are calculated within the Spin-Polarised
Random Phase Approximation with Exchange. In the vicinity of the $4d^10$
thresholds the giant autoionizing resonance is shown to be dominated.
Comparison with recent experimental data on Eu$^+$ is performed.