1 Risø National Laboratory, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2 Risø National Laboratory for Sustainable Energy, Technical University of Denmark3 unknown
The neutron capture Gamma ray spectrum of Dy 164 was measured with the curved crystal spectrometer at the DR-3 reactor at Risø. A level scheme was constructed from the energies (30 keV−1 MeV) and the intensities of the detected lines. The states obtained are: the groundstate rotational band with the levels at 73.392 (0.2+), 242.230 (0.4+), and 501.32 keV (0.6+), the Gamma vibrational levels 761.80 (2.2+), 828.19 (2.3 +), 915.98 (2.4+) and 1024.63 keV (2.5+) and a band withK=2−having the energies 976.88 (2.2−), 1039.30 (2.3-), 1122.76 (2.4−) and 1225.15 keV (2.5−). The precisely determined energies are compared with the collective model. The intensities of the transitions agree with the branching ratios expected from this model.
Zeitschrift Fur Physik, 1964, Vol 180, Issue 3, p. 298-316