Decay correlations in the seconds range with laser-ionized, mass-separated beams

The upgraded LISOL β-decay detection setup, which was used for the measurement of the mass A = 67 Fe-Co-Ni decay chain, is presented. A new decay correlation technique has been developed in order to characterize an isomeric 492 keV transition, observed in this decay chain. Correlating single β and γ events and β-coincident γ events with each other in the seconds range, allowed for the placement of this isomeric transition in 67Co. A new half-life for the 67Co ground state was determined. The technique and its possibilities and limitations are discussed.