Radiative mean lives have been measured for six terms in C II, seven terms in C III, and two terms in in C rv using the beam-foil technique.
© 1978 Optical Society of America
K. E. Donnelly, J. A. Kernahan, and E. H. Pinnington, "Mean-life measurements for some terms in C II, C III, and C iv," J. Opt. Soc. Am. 68, 1000-1002 (1978)