Precision measurements of the ionization energy of the ground state and the wavelengths of the nl-21' (n=4-15) spectral lines of the Ne-like ion Ni XIX

摘要

The spectral lines of the Ne-like ion Ni XIX, corresponding to nl-21' transitions with n = 4-15, have been recorded for the first time in the emission spectra of a laser plasma. The wavelengths of the indicated transitions have been measured with an accuracy of ±(0.5-2.5) mA, using the spectral lines of the H- and He-like ions of Na, Mg, and Cl as references. The ionization potential of Ne-like Ni XIX has been measured. The strong interaction of the 2s22ps5d and 2s2p64p configurations of this ion has been experimentally confirmed.