Gamma Transitions inTa181

Abstract

The nuclear spectrum of ${\mathrm{Ta}}^{181}$ has been investigated. The excited levels have energies of 136.25, 482.0, 615.0, 618.9, and 958.0 kev. The gamma-ray energies are 3.9, 133.02, 136.25, 136.86, 345.85, 476.0, 482.0, and 615.5 kev. Multipolarities for the gamma rays are given and spin assignments to the levels are proposed.