Nuclear spectroscopy of neutron rich A = 147 nuclei

The mass separator Ostis equipped with a thermoionisation source, is used to observe the decay of /sup 147/Cs and its daughter products /sup 147/Ba, /sup 147/La and /sup 147/Ce. Standard techniques are used to perform gamma -single, gamma - gamma -time and beta - gamma -time coincidence measurements. A Si(Li) detector is used for conversion electron measurements, which are necessary for the identification of some mixed gamma transitions. For the most important transitions, K/L ratios are measured leading to the mixing ratios M1/E2. The decay schemes proposed for the different nuclei are given. (12 refs).