The structure of ${}_{}{}^{122}{}_{}{}^{}\mathrm{Cd}$ was studied through the decay of ${}_{}{}^{122}{}_{}{}^{}\mathrm{Ag}$ by γ-γ coincidences, γ-ray angular correlations, and β-γ-γ fast electronic scintillation timing (FEST) measurements. The phonon and intruder structure of the $0^{+}$ states is discussed. The energy systematics of the low-lying levels in the Cd isotopes exhibits two distinct patterns, one minimizing at midshell, one somewhat later.

• Received 2 August 1994

DOI:https://doi.org/10.1103/PhysRevC.51.98