Half-lives of ${}_{}{}^{10}{}_{}{}^{}\mathrm{C}$, ${}_{}{}^{14}{}_{}{}^{}\mathrm{O}$, and ${}_{}{}^{23}{}_{}{}^{}\mathrm{Mg}$ have been measured to be 19.28±0.02, 70.43±0.18, and 11.26±0.08 sec, respectively.

[RADIOACTIVITY ${}_{}{}^{10}{}_{}{}^{}\mathrm{C}$ [from ${}_{}{}^{10}{}_{}{}^{}\mathrm{Be}\mathrm{}(p,n)\mathrm{}$, enriched target], ${}_{}{}^{14}{}_{}{}^{}\mathrm{O}$ [from ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}\mathrm{}(p,n)\mathrm{}$, natural target]; ${}_{}{}^{23}{}_{}{}^{}\mathrm{Mg}$ [from ${}_{}{}^{24}{}_{}{}^{}\mathrm{Mg}\mathrm{}(p,pn)\mathrm{}$ natural target]; measured $T_{\frac{1}{2}}$.]

• Received 25 October 1973

DOI:https://doi.org/10.1103/PhysRevC.9.1213