Abstract

Gamma rays in Dy 160 following beta decay of the 72 day Tb 160 have been studied using coincidence and angular correlation methods. The relative intensity and coincidence measurements confirm the principal features of the decay scheme proposed by Nathan 1). Angular correlation measurements were made on six cascades. The spin and parity of the 0.087 MeV, 0.964 MeV, and 1.262 MeV levels were found to be 2+, 2+, and 2− respectively. The measurements favour spins of 4 and 3 for the 0.283 MeV and 1.359 MeV levels. These assignments are in agreement with previous assignments by Ofer 2).The multi- polarities of the main gamma transitions are given.

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