[en] The spectrum of xenon injected into the TFR tokamak plasma has been recorded in the range 10-90 A by means of a 2m grazing incidence spectrograph. Forty-four lines and unresolved transition arrays pertaining to multicharged xenon ions isoelectronic with Cu I, Ni I, Co I, Fe I, Mn I and Cr I have been identified by means of various theoretical methods. The 17 observed lines of the 3p⁶3d⁸ - 3p⁵3d⁹ transition array, have allowed the wavelengths of the magnetic dipole transitions occuring within the ground configuration 3d⁸ of Xe XXXIX to be predicted

[en] Strontium, zirconium and rhodium have been injected into TFR tokamak plasmas by using the laser blow-off technique, and their spectra recorded either photographically (Zr, 10-92 A) or photoelectrically (all three elements, 10-330 A). Line identifications for several isoelectronic sequences from sodium -like to gallium- like are reported. Additionally, isoelectronic regularities observed for these three elements have allowed to identify a few krypton lines left unidentified in our previous work

[en] The emission spectrum of krypton (injected into TFR tokamak plasmas) has been recorded photographically in the 15-300 A spectral range by means of a 2m grazing incidence spectrograph. Preliminary identification work, based on isoelectronic regularities from known spectra of other ions and ionization equilibrium calculations, has allowed 48 lines (belonging to the O I, F I, Na I, Mg I, Al I, Ar I and K I sequences) to be identified

[en] Wavelengths for 261 lines of four-times-ionized uranium between 443 A and 2325 A are reported. They are classified by 74 energy levels, most of which are attributed to the 6p⁶5f², 6p⁶5f6d, 6p⁶5f7s, 6p⁶6d², 6p⁶5f7p and 6p⁵5f³ configurations. Energy parameters are derived for the two-electron configurations. (Auth.)

[en] The odd energy levels of Hf II, Ta II and W II have been investigated by means of the Slater-Condon parametric method. This led us to elimination of fortuitous levels reported in earlier analyses, to revision of J-values and the finding of 23 new levels in Ta II. The configuration mixing is very strong in the groups 5d^N-16s6p + 5d^N-26s6p + 5d^N-36s²6p, the latter configuration being generally unrecognizable. Very few low odd levels are still unknown in these spectra. (orig.)

[en] Ninety-seven odd levels of Eu I belonging to the sub-configurations 4f⁷(⁸S)6s², 4f⁷(⁸S)5d6s, 4f⁷(⁸S)6s6d, 4f⁷(⁸S)5d² et 4f⁷(⁸S)6p² have been interpreted by means of the Slater-Condon parametric theory by taking into account configuration mixing and the effect of upper terms arising from 4f⁷⁶P. The r.m.s. deviation is 58 cm^-1 and 13 levels which have been found in an analysis of infrared emission spectra are reported for the first time. The energy level structure of the core 4f⁷ has been derived from a parametric study of the ground configuration of Eu III. (orig.)

[en] The resonance lines of neon-like ions and their long-wavelength satellites emitted by ions of lower charge are interpreted by means of the relativistic parametric potential method. The transition arrays between sub-configurations with the same angular momentum of the 2p⁵ core and two or three n=3 electrons added are predicted ab initio in the UTA formalism and fit the experimental data from barium to praseodymium. A spectrum of laser-irradiated silver recorded by Gauthier, Geindre and Monier at GRECO-ILM facilities is shown with detailed identification of Ag XXXVIII and Ag XXXVII transitions from 3.2 to 4.2 Angstrom. The electric-quadrupole transitions 2s-3d in the neon sequence and 3p-4f in the nickel sequence have been observed in laser-produced plasmas and open the way to new diagnostics

[en] The emission spectrum of krypton (injected into TFR tokamak plasmas) has been recorded photographically in the 15-300 A spectral range by means of a 2 m grazing incidence spectrograph. Preliminary identification work, based on isoelectronic regularities from known spectra of other ions and ionization equilibrium calculations, has allowed 48 lines (belonging to the O I, F I, Na I, Mg I, Al I, Ar I and K I sequences) to be identified. (orig.)

[en] The predictions of 4s-4p and 4p-4d transitions derived from Slater-Condon type calculations of 3d⁹4s, -4p and -4d configurations in the sequence Zn III-Se VII have been recently confirmed experimentally through Mo XV. These new data are used here to refine the predictions in the sequence Mo XV-Sn XXIII. The radial parameters involved in the three configurations are determined in generalized least-squares fits using all known levels in the sequence. (orig.)

[en] Strontium, zirconium and rhodium have been injected into TFR tokamak plasmas by using the laser blow-off technique, and their spectra recorded either photographically (Zr, 10-92 A) or photoelectrically (all three elements, 10-330 A). Line identifications for several isoelectronic sequences from sodium-like to gallium-like are reported. Additionally, isoelectronic regularities observed for these three elements have allowed to identify a few krypton lines left unidentified in our previous work. (orig.)