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Energies and relative intensities of 31?-transitions from the decay of62Zn have been measured using an anti-Compton spectrometer. Gamma-gamma coincidence measurements were performed. Besides the levels of62Cu for which the population in the decay of62Zn was known, also levels at 644.82, 698.32, 1221.5 and 1525.9 keV in62Cu are found to be populated. The previously proposedß-feeding of62Cu levels at 1142.5 and 1280.8 keV is ruled out.

The energies and relative intensities of the ?-rays from the decay of63Co (27.5 ± 0.3 sec) have been measured. New ?-transitions of 155.6, 913.6, 981.7, 1069.1 and 2174.5 keV have been observed and assigned to this decay.