TR-LIF LIFETIME MEASUREMENTS AND HFR+CPOL CALCULATIONS OF RADIATIVE PARAMETERS IN VANADIUM ATOM (V I)

Radiative lifetimes of 79 levels belonging to the 3d super(3)4s4 p, 3d super(4)4p, 3d super(3)4s5 p, 3d super(4)5p, and 3d super(3)4s4 d configurations of V I with energy from 26,604.807 to 46,862.786 cm super(-1) have been measured using time-resolved laser-induced fluorescence (TR-LIF) spectroscopy in laser-produced plasma. The lifetime values reported in this paper are in the range of 3.3-94 ns, and the uncertainties of these measurements are within + or -10%. A good agreement was obtained with previous data. HFR+CPOL calculations have been performed and used to combine the calculated branching fractions with the available experimental lifetimes to determine semi-empirical transition probabilities for 784 V I transitions.