The Decay of 117Cd and 117Cdm

Abstract

The energy levels of 117In have been investigated following the β decay of 3.4 h 117Cdm and 2.5 h 117Cdg. Using high resolution Ge(Li) detectors singly and in coincidence, 127γ transitions have been observed. Eighty-five of these transitions have been classified by both coincidence data and energy fit, 29 weak transitions by energy fit alone, and 12 remain unclassified. Thirty-seven levels in 117In have been established; of these, 24 are low spin states fed from the ground state and 13 are high spin states fed from the isomer. Spin and parity assignments for the newly established levels are discussed.