Abstract
The beta decays of the proton-rich, T-z = -2 nuclei Fe-48, Ni-52 and Zn-56 were investigated by decay spectroscopy at GANIL. The decay schemes were determined, together with absolute Fermi and Gamow-Teller transition strengths. New interesting results were obtained, including the first observation of a new decay mode in the fp-shell, the exotic beta-delayed gamma-proton decay seen in Zn-56, and the first observation of the 2(+) isomer in Co-52. These studies were complemented by Charge Exchange reactions on the stable mirror targets.