Beam-foil measurements on intercombination transitions in Cl-like ions of elements Mn through Zn

Abstract

Prompt and delayed beam-foil spectra have been recorded in the wavelength range of the 3s23p5-3s23p4 3d transitions in Cl-like ions of the elements Mn through Zn. A comparison with simulated spectra reveals the presence of foreign intercombination lines, of ions in neighbouring charge states. For Fe, Ni and Cu a number of decay curves have been recorded at the wavelengths of prominent features in the delayed spectra. The results are compared with available theortical data. A number of solar lines can now be identified with intercombination lines in Cl I-like spectra of Fe and Ni.