Atomic transitions for the doubly ionized argon spectrum, ArIII

We present new experimental atomic transition values for the atomic emission spectrum of doubly ionized argon, Ar III. In this work we studied 3s(2)3p(4) - 3s(2)3p(3)3d, 3s(2)3p(4) - 3s(2)3p(3)4s , 3s(2)3p(4) - 3s(2)3p(3)4d, 3s(2)3p(4) - 3s(2)3p(3)5s, 3s(2)3p(3)3d - 3s(2)3p(3)4p, and 3s(2)3p(3)4s - 3s(2)3p(3)4p transition arrays and 196 lines were identified as new atomic transitions between levels of these configurations. The experimental data were obtained from a capillary-discharge tube. The identifications are supported by multiconfiguration Hartree-Fock relativistic calculations.30238639