Identification of excited states in226U

Two experiments have been performed at the Accelerator Laboratory of the Department of Physics, University of Jyväskylä, Finland, and are reported here. The first experiment was a recoil-decay tagging study intended to delineate the level scheme of 226U for the first time. The subsequent experiment, the observation of fine structure in the a decay of 230Pu, was to obtain an improved measurement of the excitation energy of the first excited 2+ state, which was tentatively assigned in the first experiment.