On the spectra of highly-ionized krypton, strontium, zirconium and rhodium excited in the plasma of the TFR tokamak

Storntium, 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 Å) or photoelectrically (all three elements, 10-330 Å). 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 [1].