Abstract

The radiations of Tb160 have been studied by means of magnetic and scintillation spectrometers and various coincidence techniques. A decay scheme has been proposed which includes the following excited states in Dy160: 87 keV (2+), 283 keV (4+), 964 keV (2+), 1047 keV (3+), 1262 keV (2−), and 1359 keV (3−). The level scheme is discussed in the light of the unified model and it is suggested that the states at 964 keV and 1047 keV may possibly belong to a rotational band associated with electric quadrupole vibrations (gamma vibrations) and that the states at 1262 keV and 1359 keV similarly may belong to a rotational band associated with electric octupole vibrations.

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