References of "Enzonga Yoca, S"
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See detailDecay rates for radiative transitions in the Pr IV spectrum
Enzonga Yoca, S.; Quinet, Pascal ULg

in Journal of Physics : B Atomic Molecular & Optical Physics (2013)

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See detailConfiguration interaction and radiative decay rates in trebly ionized tungsten (W IV)
Enzonga Yoca, S; Quinet, Pascal ULg; Biémont, E

in Journal of Physics : B Atomic Molecular & Optical Physics (2012), 45

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See detailRadiative properties and core-polarization effects in W5+ ions
Enzonga Yoca, S; Palmeri, P; Quinet, Pascal ULg et al

in Journal of Physics : B Atomic Molecular & Optical Physics (2012), 45

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See detailComparative semi-empirical and ab initio atomic structure calculations in Yb-like tungsten W4+
Enzonga Yoca, S; Quinet, Pascal ULg; Palmeri, P et al

in Journal of Physics : B Atomic Molecular & Optical Physics (2012), 45

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See detailAtomic structure calculations and Beam-foil observations of La IV
Biémont, Emile ULg; Clar, M.; Enzonga Yoca, S. et al

in Canadian Journal of Physics (2009), 87

Relativistic Hartree–Fock and multiconfigurational Dirac–Fock calculations of atomic structure and transition rates have been carried out in trebly ionized lanthanum (La3+, Z = 57). The calculations have ... [more ▼]

Relativistic Hartree–Fock and multiconfigurational Dirac–Fock calculations of atomic structure and transition rates have been carried out in trebly ionized lanthanum (La3+, Z = 57). The calculations have to cope with configuration interaction effects but also with the very complex situation of the collapse of the 4f wave function. The calculations are compared to experimental data obtained with beam-foil spectroscopy in the extreme ultraviolet, at ion energies that favour <br />the production of the spectrum La IV. Besides lines known from sliding spark discharges, many more lines are observed that have not yet been identified. Time-resolved measurements yield three level lifetimes in La IV that agree roughly with the results of our own calculations. [less ▲]

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See detailLifetime and transition probability determinationin Xe IX
Garnir, Henri-Pierre ULg; Enzonga Yoca, S.; Quinet, Pascal ULg et al

in Journal of Quantitative Spectroscopy & Radiative Transfer (2009), 110

A new set of transition probabilities is proposed for Xe IX.They have been calculated by two different theoretical approaches i.e. a fully relativistic multiconfiguration Dirac–Fock (MCDF) method and a ... [more ▼]

A new set of transition probabilities is proposed for Xe IX.They have been calculated by two different theoretical approaches i.e. a fully relativistic multiconfiguration Dirac–Fock (MCDF) method and a partly relativistic Hartree–Fock (HFR) approach takingcore-polarization effects in to account. Their accuracy has been evaluated through comparisons with lifetimeme asurements for 11 levels performed using beams of Xeþ ions produced by a 2 MVV an de Graaff accelerator. The agreement theory-experimentis nice for most of the levels and gives more weight to the theoretical models used for the calculations and, consequently,to the new transition probabilities [less ▲]

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See detailRadiative lifetimes and transition probabilities in Hf I and Hf III
Malcheva, G.; Enzonga Yoca, S.; Mayo, R. et al

in Monthly Notices of the Royal Astronomical Society (2009), 396

Radiative lifetimes of nine odd levels in Hf III (5d6p z3P0,1, z1D2, z3D1,2,3, z3F2,3,4) and of two odd levels in Hf I (5d6s26p z3D2,3) have been determined using Time-Resolved Laser-Induced Fluorescence ... [more ▼]

Radiative lifetimes of nine odd levels in Hf III (5d6p z3P0,1, z1D2, z3D1,2,3, z3F2,3,4) and of two odd levels in Hf I (5d6s26p z3D2,3) have been determined using Time-Resolved Laser-Induced Fluorescence. The investigated levels in Hf I were excited in a single-step process from the ground term (5d26s2 a3F), whereas in Hf III we started from either the ground term 5d2 a3F or the low-lying 5d6s a3D term. For all of the investigated levels, the lifetimes have been measured for the first time. A multiconfiguration relativistic Hartree–Fock method, including core-polarization effects, has been used to compute radiative lifetimes of 15 Hf III levels, including those measured in this work. Transition probabilities for 55 transitions in Hf III are also given. [less ▲]

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See detailTransition probabilities in Au III
Enzonga Yoca, S.; Biémont, Emile ULg; Delahaye, F. et al

in Physica Scripta (2008), 78

Theoretical transition probabilities are reported for doubly ionized gold (Au III). They have been obtained through the use of two different independent theoretical approaches, i.e. the SUPERSTRUCTURE ... [more ▼]

Theoretical transition probabilities are reported for doubly ionized gold (Au III). They have been obtained through the use of two different independent theoretical approaches, i.e. the SUPERSTRUCTURE code and a HFR model including valence–valence and core–valence configuration interaction in a detailed way. The new scale of A-values is assessed through the comparison of the two sets of results and also through the use of a model similar to the one selected for an isoelectronic ion, i.e. Pt II, for which accurate laser-induced-fluorescence lifetimes have been measured recently. [less ▲]

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