The multipole mixing ratios of gamma transitions among the low-spin states
of Ba-130 have been studied by means of a gamma gamma angular correlation a
nalysis. The excited states of Ba-130 were populated in the beta decay of L
a-130 obtained with the Sn-120(N-14, 4n) reaction at 65 MeV. The gamma ray
spectra were measured off-beam with the Osiris-8 detector array, which was
enhanced by one Euroball cluster detector. at the University of Cologne. We
obtained precise and unique values for the multipole mixing ratios of 18 t
ransitions.