${}_{}{}^{17}{}_{}{}^{}\mathrm{F}$ was made in the ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}(d,n){}_{}{}^{17}{}_{}{}^{}\mathrm{F}$ reaction, using a target of ${\mathrm{Ta}}_2$${\mathrm{O}}_5$ enriched in ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$, and its half-life was measured by detecting $\beta$ rays in a plastic scintillator. A value of 64.80 ± 0.12 sec was obtained in agreement with an earlier but less accurate measurement.

RADIOACTIVITY ${}_{}{}^{17}{}_{}{}^{}\mathrm{F}$: measured $T_{\frac{1}{2}}$.

• Received 29 April 1977

DOI:https://doi.org/10.1103/PhysRevC.16.889