Investigation of autoionizing CuI-states in the region of the second ionization limit CuII 3d 94s

The combination of collisional and laser excitation was used for the investigation of autoionizing CuI states in the region of the second ionization limit CuII 3d ⁹ 4s at 85000–95000 cm^?1. The analysis of the complicated signal structure was concentrated on the first measurement of CuI 3d ⁹ 4p ² levels. The experimental results are compared with Hartree-Fock calculations of the energy values and level widths of the autoionization resonances.