The half-lives of the first and second excited states in 66Ga

The half-lives of the first and second excited states at 43.9 and 66.3 keV in ⁶⁶Ga were determined by measuring the time dependence of the 43.9 and 22.4 keV γ-transition intensities. The levels in ⁶⁶Ga were populated by the ⁶⁶Za(p, n)⁶⁶Ga and ⁶³Cu(α, n)⁶⁶Ga reactions. The results are T_{$\text{1}\text{2}$}(43.9 keV) = 16(4) ns and T_{$\text{1}\text{2}$}(66.3 keV) = 23(2) ns. A g-factor measurement reported in the literature is reanalysed.