Der Zerfall des Cu⁶⁰

Abstract

Theγ-ray-spectrum of Ni⁶⁰ associated with the E.C.- and β⁺-decay of Cu⁶⁰ has been measured with Ge(Li)-crystals. The observedγ-ray-transitions led to a new levelscheme for this decay with Ni⁶⁰-levels at: 1332, 2159, 2286, 2627, 3125, 3196, 3272, 3391, 4025, 4080, 4332, 4500, 4554 and 4584 keV, most of them could be identified with previously reported levels found in scattering experiments. As far as possible spin and parity assignments have been made, and the levels are compared with phonon and quasi-particle theory.