The radiations of ${\mathrm{Sc}}^{47}$ have been examined with a scintillation spectrometer and with an intermediate image spectrometer operated in conjunction with a scintillation spectrometer for coincidence spectra. Two beta groups were observed with maximum energy values of 0.596±0.010 Mev and 0.430±0.005 Mev and relative intensities of 36% and 64%, respectively. The $log\mathrm{ft}$ values of the beta groups were found to be 6.0 and 5.3, respectively. One gamma ray was observed having an energy of 0.167±0.002 Mev. The coincidence beta spectrum contained only the lower energy group. The decay scheme for ${\mathrm{Sc}}^{47}$ is discussed.

• Received 10 August 1955

DOI:https://doi.org/10.1103/PhysRev.100.1407